Hi,

I'm terribly new at java, i created a program for a poster availability system and there are 8 errors that I have no idea how to resolve. The program is meant only to run at the command prompt.

The errors are:

C:\Project\Enrol.java:46: cannot find symbol
symbol  : method getID()
location: class Record
if(data.getID()!=0)
       ^
C:\Project\Enrol.java:93: cannot find symbol
symbol  : method getID()
location: class Record
if(temp==database[count].getID()){
                        ^
C:\Project\Enrol.java:134: cannot find symbol
symbol  : constructor Record(java.lang.String,int,int)
location: class Record
database[size]=new Record(name,age,ID);
               ^
C:\Project\Enrol.java:141: cannot find symbol
symbol  : method getAge()
location: class Record
System.out.println("Age:    "+database[tgt].getAge());
                                           ^
C:\Project\Enrol.java:142: cannot find symbol
symbol  : method getID()
location: class Record
System.out.println("ID:     "+database[tgt].getID());
                                           ^
C:\Project\Enrol.java:157: cannot find symbol
symbol  : method getID()
location: class Record
if(database[x].getID()==ID){
              ^
C:\Project\Enrol.java:214: cannot find symbol
symbol  : method setAge(int)
location: class Record
database[tgt].setAge(age);
             ^
C:\Project\Enrol.java:221: cannot find symbol
symbol  : method setID(int)
location: class Record
database[tgt].setID(ID);
             ^
8 errors

Tool completed with exit code 1

Enrol.java

import java.io.*;
import java.util.*;
import java.text.*;

public class Enrol{

private Record database[];
private int size;
private Record data;
private RandomAccessFile input;
private RandomAccessFile output;

//constructor
public Enrol(){
database=new Record[100];
size=0;
load();
}

//loading rom file to array
public void load(){
try{
input=new RandomAccessFile("members1.dat","r");
}catch(Exception e){
System.out.println("Error opening file");
System.exit(1);
}
readRecord();
try{
input.close();
}catch(IOException e){
System.out.println("Problem closing file");}
System.out.println("records loaded="+size);
}

//reading from file and filling the array.
 public void readRecord(){
try{
long fp=0;
size=input.readInt();
for (int count=0;count<=size;count++){
fp=input.getFilePointer();
input.seek(((long)count*Record.size())+4);
data=new Record();
data.read(input);
if(data.getID()!=0)
database[count]=data;
}
}catch (EOFException eof){
System.out.println("End of File");
}catch(IOException e){
System.out.println("Error reading file");
System.exit(1);
}
}

//writing the array to the file
public void writeRecord(){
try{
output.writeInt(size);
for (int count=0;count<size;count++){
output.seek(((long)count*Record.size())+4);
database[count].write(output);
}
}catch(IOException e){
System.out.println("Error!");
System.exit(1);
}
}


public int menu() throws Exception{
BufferedReader userInput=new BufferedReader (new InputStreamReader(System.in));
System.out.println("\n\n\n\t**************Homecare Inc************");
System.out.println("\t\t*******Main Menu*********");
System.out.println("\t\t*************************");
System.out.println("\n");
System.out.println("\t1)  Enter Member's Records");
System.out.println("\t2)  Delete Member's Records");
System.out.println("\t3)  Search Member's Records");
System.out.println("\t4)  Display Member's Records");
System.out.println("\t5)  Modify Member's Records");
System.out.println("\t6)  Exit");
System.out.println("\n\n");
System.out.print("\tPlease make a choice(1-6) :");
String input=userInput.readLine();
return Integer.parseInt(input);
}

//validation for ID
public boolean isNotDuplicate(int temp){
for(int count=0;count<size;count++)
if(temp==database[count].getID()){
System.out.println("ID alrady in Use!");
return true;
}
return false;
}

public void AddRecord() throws Exception{
BufferedReader userInput=new BufferedReader(new InputStreamReader(System.in));

String name;

int age;

int ID;


do{

System.out.println("Enter ID:   ");
ID=Integer.parseInt(userInput.readLine());
}
while(isNotDuplicate(ID));
do{

System.out.println("Enter Name:   ");
name=userInput.readLine();

if (name.length()>20)
    System.out.println("Name exceed 20 characters!!!");
}while(name.length()>20);
do{

System.out.println("Enter Age:    ");
age=Integer.parseInt(userInput.readLine());

if (age<0 || age >100)

    System.out.println("Age exceed limit!!!");

}while((age<0) || (age>100));
database[size]=new Record(name,age,ID);
size++;

}

public void display(int tgt){
System.out.println("\nName: "+database[tgt].getName());
System.out.println("Age:    "+database[tgt].getAge());
System.out.println("ID:     "+database[tgt].getID());
}

public int SearchRecord() throws Exception{
BufferedReader userInput=new BufferedReader(new InputStreamReader(System.in));

int tgt=0;
int x;

System.out.println("\nEnter ID:   ");

int ID=Integer.parseInt(userInput.readLine());

for (x=0; x<size; x++)

if(database[x].getID()==ID){
display(x);
return x;

}

if(x==size)
{
System.out.println("Not Found!");
}
return -1;

}

public void DeleteRecord() throws Exception{
BufferedReader userInput=new BufferedReader(new InputStreamReader(System.in));
int tgt=0;
int x=0;
try{
tgt=SearchRecord();
}catch(Exception e){}
if(tgt!=-1){
System.out.println("Deletion Confirmation");
String reply=userInput.readLine();
if (reply.equals("y"))
{for (x=tgt; x<size; x++)
database[x]=database[x+1];
 size=size-1;
 System.out.println("Record Deleted");}
}
}

public void DisplayRecords(){
for(int count=0; count<size; count++)
display(count);
System.out.println("\n");
}

public void ModifyRecord() throws Exception{
BufferedReader userInput=new BufferedReader(new InputStreamReader(System.in));
String reply="";
int tgt=0;
try{
tgt=SearchRecord();
}catch(Exception e){}
if(tgt!=-1){
System.out.println("\nModify Name?");
reply=userInput.readLine();
if(reply.equals("y")){
String name=userInput.readLine();
database[tgt].setName(name);
}

System.out.println("\nModify Age?");
reply=userInput.readLine();
if(reply.equals("y")){
int age=Integer.parseInt(userInput.readLine());
database[tgt].setAge(age);
}

System.out.println("\nModify ID?");
reply=userInput.readLine();
if(reply.equals("y")){
int ID=Integer.parseInt(userInput.readLine());
database[tgt].setID(ID);
}
System.out.println("Record Updated");
}
}

public void Exit(){
try{
output=new RandomAccessFile("members1.dat","rw");
}catch(IOException e){
System.out.println("Error in Opening File");
System.exit(1);
}
writeRecord();
try{
output.close();
}catch(IOException e){
System.out.println("Problem Closing File");}
}

public void process (int count){
switch(count){
case 1:try{
AddRecord();
}catch(Exception e){}
break;
case 2:try{
DeleteRecord();
}catch(Exception e){}
break;
case 3:try{
SearchRecord();
}catch(Exception e){}
break;
case 4:try{
DisplayRecords();
}catch(Exception e){}
break;
case 5:try{
ModifyRecord();
}catch(Exception e){}
break;
case 6:Exit();
break;
default:System.out.println("\nPlease Enter choice from 1 to 6");
}
}

public static void main(String args[]){
Enrol data=new Enrol();
int count=0;
do{
try{count=data.menu();
}catch(Exception e){}
data.process(count);
}while(count!=6);
}
}

Record.java

import java.io.*;
import java.util.*;
import java.text.*;

public class Record
{
    private String name, qty, size, price, details, arrival;

    public Record(String name, String qty, String size, String price, String details, String arrival)
    {
        this.name=name;
        this.arrival=arrival;
        this.size=size;
        this.price=price;
        this.details=details;
        this.arrival=arrival;
    }

    public Record(){}

    public void read(RandomAccessFile file)throws IOException
    {
        char namearray[]=new char[100];
        for(int x=0; x<30; x++)
        namearray[x]=file.readChar();
        name=new String(namearray);

        char qtyarray[]=new char[9];
        for(int x=0; x<9; x++)
        qtyarray[x]=file.readChar();
        qty=new String(qtyarray);

        char sizearray[]=new char[50];
        for(int x=0; x<50; x++)
        sizearray[x]=file.readChar();
        size=new String(sizearray);

        char pricearray[]=new char[6];
        for(int x=0; x<6; x++)
        pricearray[x]=file.readChar();
        price=new String(pricearray);

        char detailsarray[]=new char[200];
        for(int x=0; x<200; x++)
        detailsarray[x]=file.readChar();

        char arrivalarray[]=new char[12];
        for(int x=0; x<12; x++)
        arrivalarray[x]=file.readChar();
        arrival=new String(arrivalarray);

    }

    public void write(RandomAccessFile file)throws IOException
    {
        StringBuffer namebuffer, qtybuffer, sizebuffer, pricebuffer, detailsbuffer, arrivalbuffer;


        if(name!=null)
            namebuffer=new StringBuffer(name);
        else
            namebuffer=new StringBuffer(100);
            namebuffer.setLength(100);
            file.writeChars(namebuffer.toString());


        if(qty!=null)
            qtybuffer=new StringBuffer(qty);
        else
            qtybuffer=new StringBuffer(9);
            qtybuffer.setLength(9);
            file.writeChars(qtybuffer.toString());


        if(size!=null)
            sizebuffer=new StringBuffer(size);
        else
            sizebuffer=new StringBuffer(50);
            sizebuffer.setLength(50);
            file.writeChars(sizebuffer.toString());


        if(price!=null)
            pricebuffer=new StringBuffer(price);
        else
            pricebuffer=new StringBuffer(6);
            pricebuffer.setLength(6);
            file.writeChars(pricebuffer.toString());


        if(details!=null)
            detailsbuffer=new StringBuffer(details);
        else
            detailsbuffer=new StringBuffer(200);
            detailsbuffer.setLength(200);
            file.writeChars(detailsbuffer.toString());


        if(arrival!=null)
            arrivalbuffer=new StringBuffer(arrival);
        else
            arrivalbuffer=new StringBuffer(12);
            arrivalbuffer.setLength(12);
            file.writeChars(arrivalbuffer.toString());

    }

    public void setName(String sname)
    {
        this.name=sname;
    }
    public String getName()
    {
        return name;
    }



    public void setQty(String sqty)
    {
        this.qty=sqty;
    }
    public String getQty()
    {
        return qty;
    }


    public void setSize(String ssize)
    {
        this.size=ssize;
    }
    public String getSize()
    {
        return size;
    }



    public void setPrice(String sprice)
    {
        this.price=sprice;
    }
    public String getPrice()
    {
        return price;
    }



    public void setDetails(String sdetails)
    {
        this.details=sdetails;
    }
    public String getDetails()
    {
        return details;
    }



    public void setArrival(String sarrival)
    {
        this.arrival=sarrival;
    }
    public String getArrival()
    {
        return arrival;
    }



    public static long size()
    {
        return 1000;
    }
}

Create.java

import java.io.*;
import java.util.*;
import java.text.*;

public class Create{

    private Record blank;
    private RandomAccessFile file;

    public Create() {

    blank=new Record();
    int count;
    try{
        file=new RandomAccessFile("members1.dat","rw");
        for (count=0; count<100; count++)
            blank.write(file);
        }catch(IOException e){
            System.out.println("Error Opening File");
            System.exit(0);
                }
        }

public static void main (String args[]){
    Create x=new Create();
    }
}

Edited 3 Years Ago by pyTony: fixed formatting

Attachments
import java.io.*;
import java.util.*;
import java.text.*;

public class Create{

	private Record blank;
	private RandomAccessFile file;

    public Create() {

    blank=new Record();
    int count;
    try{
    	file=new RandomAccessFile("members1.dat","rw");
    	for (count=0; count<100; count++)
    		blank.write(file);
    	}catch(IOException e){
    		System.out.println("Error Opening File");
    		System.exit(0);
    			}
    	}

public static void main (String args[]){
	Create x=new Create();
	}
}
import java.io.*;
import java.util.*;
import java.text.*;

public class Enrol{

private Record database[];
private int size;
private Record data;
private RandomAccessFile input;
private RandomAccessFile output;

//constructor
public Enrol(){
database=new Record[100];
size=0;
load();
}

//loading rom file to array
public void load(){
try{
input=new RandomAccessFile("members1.dat","r");
}catch(Exception e){
System.out.println("Error opening file");
System.exit(1);
}
readRecord();
try{
input.close();
}catch(IOException e){
System.out.println("Problem closing file");}
System.out.println("records loaded="+size);
}

//reading from file and filling the array.
 public void readRecord(){
try{
long fp=0;
size=input.readInt();
for (int count=0;count<=size;count++){
fp=input.getFilePointer();
input.seek(((long)count*Record.size())+4);
data=new Record();
data.read(input);
if(data.getID()!=0)
database[count]=data;
}
}catch (EOFException eof){
System.out.println("End of File");
}catch(IOException e){
System.out.println("Error reading file");
System.exit(1);
}
}

//writing the array to the file
public void writeRecord(){
try{
output.writeInt(size);
for (int count=0;count<size;count++){
output.seek(((long)count*Record.size())+4);
database[count].write(output);
}
}catch(IOException e){
System.out.println("Error!");
System.exit(1);
}
}


public int menu() throws Exception{
BufferedReader userInput=new BufferedReader (new InputStreamReader(System.in));
System.out.println("\n\n\n\t**************Homecare Inc************");
System.out.println("\t\t*******Main Menu*********");
System.out.println("\t\t*************************");
System.out.println("\n");
System.out.println("\t1)  Enter Member's Records");
System.out.println("\t2)  Delete Member's Records");
System.out.println("\t3)  Search Member's Records");
System.out.println("\t4)  Display Member's Records");
System.out.println("\t5)  Modify Member's Records");
System.out.println("\t6)  Exit");
System.out.println("\n\n");
System.out.print("\tPlease make a choice(1-6) :");
String input=userInput.readLine();
return Integer.parseInt(input);
}

//validation for ID
public boolean isNotDuplicate(int temp){
for(int count=0;count<size;count++)
if(temp==database[count].getID()){
System.out.println("ID alrady in Use!");
return true;
}
return false;
}

public void AddRecord() throws Exception{
BufferedReader userInput=new BufferedReader(new InputStreamReader(System.in));

String name;

int age;

int ID;


do{

System.out.println("Enter ID:   ");
ID=Integer.parseInt(userInput.readLine());
}
while(isNotDuplicate(ID));
do{

System.out.println("Enter Name:   ");
name=userInput.readLine();

if (name.length()>20)
    System.out.println("Name exceed 20 characters!!!");
}while(name.length()>20);
do{

System.out.println("Enter Age:    ");
age=Integer.parseInt(userInput.readLine());

if (age<0 || age >100)

    System.out.println("Age exceed limit!!!");

}while((age<0) || (age>100));
database[size]=new Record(name,age,ID);
size++;

}

public void display(int tgt){
System.out.println("\nName: "+database[tgt].getName());
System.out.println("Age:    "+database[tgt].getAge());
System.out.println("ID:     "+database[tgt].getID());
}

public int SearchRecord() throws Exception{
BufferedReader userInput=new BufferedReader(new InputStreamReader(System.in));

int tgt=0;
int x;

System.out.println("\nEnter ID:   ");

int ID=Integer.parseInt(userInput.readLine());

for (x=0; x<size; x++)

if(database[x].getID()==ID){
display(x);
return x;

}

if(x==size)
{
System.out.println("Not Found!");
}
return -1;

}

public void DeleteRecord() throws Exception{
BufferedReader userInput=new BufferedReader(new InputStreamReader(System.in));
int tgt=0;
int x=0;
try{
tgt=SearchRecord();
}catch(Exception e){}
if(tgt!=-1){
System.out.println("Deletion Confirmation");
String reply=userInput.readLine();
if (reply.equals("y"))
{for (x=tgt; x<size; x++)
database[x]=database[x+1];
 size=size-1;
 System.out.println("Record Deleted");}
}
}

public void DisplayRecords(){
for(int count=0; count<size; count++)
display(count);
System.out.println("\n");
}

public void ModifyRecord() throws Exception{
BufferedReader userInput=new BufferedReader(new InputStreamReader(System.in));
String reply="";
int tgt=0;
try{
tgt=SearchRecord();
}catch(Exception e){}
if(tgt!=-1){
System.out.println("\nModify Name?");
reply=userInput.readLine();
if(reply.equals("y")){
String name=userInput.readLine();
database[tgt].setName(name);
}

System.out.println("\nModify Age?");
reply=userInput.readLine();
if(reply.equals("y")){
int age=Integer.parseInt(userInput.readLine());
database[tgt].setAge(age);
}

System.out.println("\nModify ID?");
reply=userInput.readLine();
if(reply.equals("y")){
int ID=Integer.parseInt(userInput.readLine());
database[tgt].setID(ID);
}
System.out.println("Record Updated");
}
}

public void Exit(){
try{
output=new RandomAccessFile("members1.dat","rw");
}catch(IOException e){
System.out.println("Error in Opening File");
System.exit(1);
}
writeRecord();
try{
output.close();
}catch(IOException e){
System.out.println("Problem Closing File");}
}

public void process (int count){
switch(count){
case 1:try{
AddRecord();
}catch(Exception e){}
break;
case 2:try{
DeleteRecord();
}catch(Exception e){}
break;
case 3:try{
SearchRecord();
}catch(Exception e){}
break;
case 4:try{
DisplayRecords();
}catch(Exception e){}
break;
case 5:try{
ModifyRecord();
}catch(Exception e){}
break;
case 6:Exit();
break;
default:System.out.println("\nPlease Enter choice from 1 to 6");
}
}

public static void main(String args[]){
Enrol data=new Enrol();
int count=0;
do{
try{count=data.menu();
}catch(Exception e){}
data.process(count);
}while(count!=6);
}
}
import java.io.*;
import java.util.*;
import java.text.*;

public class Record
{
	private String name, qty, size, price, details, arrival;

	public Record(String name, String qty, String size, String price, String details, String arrival)
	{
		this.name=name;
		this.arrival=arrival;
		this.size=size;
		this.price=price;
		this.details=details;
		this.arrival=arrival;
	}

	public Record(){}

	public void read(RandomAccessFile file)throws IOException
	{
		char namearray[]=new char[100];
		for(int x=0; x<30; x++)
		namearray[x]=file.readChar();
		name=new String(namearray);

		char qtyarray[]=new char[9];
		for(int x=0; x<9; x++)
		qtyarray[x]=file.readChar();
		qty=new String(qtyarray);

		char sizearray[]=new char[50];
		for(int x=0; x<50; x++)
		sizearray[x]=file.readChar();
		size=new String(sizearray);

		char pricearray[]=new char[6];
		for(int x=0; x<6; x++)
		pricearray[x]=file.readChar();
		price=new String(pricearray);

		char detailsarray[]=new char[200];
		for(int x=0; x<200; x++)
		detailsarray[x]=file.readChar();

		char arrivalarray[]=new char[12];
		for(int x=0; x<12; x++)
		arrivalarray[x]=file.readChar();
		arrival=new String(arrivalarray);

	}

	public void write(RandomAccessFile file)throws IOException
	{
		StringBuffer namebuffer, qtybuffer, sizebuffer, pricebuffer, detailsbuffer, arrivalbuffer;


		if(name!=null)
			namebuffer=new StringBuffer(name);
		else
			namebuffer=new StringBuffer(100);
			namebuffer.setLength(100);
			file.writeChars(namebuffer.toString());


		if(qty!=null)
			qtybuffer=new StringBuffer(qty);
		else
			qtybuffer=new StringBuffer(9);
			qtybuffer.setLength(9);
			file.writeChars(qtybuffer.toString());


		if(size!=null)
			sizebuffer=new StringBuffer(size);
		else
			sizebuffer=new StringBuffer(50);
			sizebuffer.setLength(50);
			file.writeChars(sizebuffer.toString());


		if(price!=null)
			pricebuffer=new StringBuffer(price);
		else
			pricebuffer=new StringBuffer(6);
			pricebuffer.setLength(6);
			file.writeChars(pricebuffer.toString());


		if(details!=null)
			detailsbuffer=new StringBuffer(details);
		else
			detailsbuffer=new StringBuffer(200);
			detailsbuffer.setLength(200);
			file.writeChars(detailsbuffer.toString());


		if(arrival!=null)
			arrivalbuffer=new StringBuffer(arrival);
		else
			arrivalbuffer=new StringBuffer(12);
			arrivalbuffer.setLength(12);
			file.writeChars(arrivalbuffer.toString());

	}

	public void setName(String sname)
	{
		this.name=sname;
	}
	public String getName()
	{
		return name;
	}



	public void setQty(String sqty)
	{
		this.qty=sqty;
	}
	public String getQty()
	{
		return qty;
	}


	public void setSize(String ssize)
	{
		this.size=ssize;
	}
	public String getSize()
	{
		return size;
	}



	public void setPrice(String sprice)
	{
		this.price=sprice;
	}
	public String getPrice()
	{
		return price;
	}



	public void setDetails(String sdetails)
	{
		this.details=sdetails;
	}
	public String getDetails()
	{
		return details;
	}



	public void setArrival(String sarrival)
	{
		this.arrival=sarrival;
	}
	public String getArrival()
	{
		return arrival;
	}



	public static long size()
	{
		return 1000;
	}
}

Hi ,

You don't have the reported methods(getID(),getAge(), setAge(int),setID(int)) definitions in Record Class.

C:\Project\Enrol.java:134: cannot find symbol
symbol : constructor Record(java.lang.String,int,int)
location: class Record
database=new Record(name,age,ID)

and also you should have Three argument constructor with appropriate types in your Record Class.

Hi,

Thank you very much for your reply!

I'm down to one error msg:

C:\Project\Enrol.java:140: cannot find symbol
symbol  : constructor Record(java.lang.String,int,int)
location: class Record
database[size]=new Record(username,age,ID);
               ^
1 error

Tool completed with exit code 1
import java.io.*;
import java.util.*;
import java.text.*;

public class Enrol{

private Record database[];
private int size;
private Record data;
private RandomAccessFile input;
private RandomAccessFile output;

//constructor
public Enrol(){
database=new Record[100];
size=0;
load();
}

//loading rom file to array
public void load(){
try{
input=new RandomAccessFile("members1.dat","r");
}catch(Exception e){
System.out.println("Error opening file");
System.exit(1);
}
readRecord();
try{
input.close();
}catch(IOException e){
System.out.println("Problem closing file");}
System.out.println("records loaded="+size);
}

//reading from file and filling the array.
public void readRecord(){
try{
long fp=0;
size=input.readInt();
for (int count=0;count<=size;count++){
fp=input.getFilePointer();
input.seek(((long)count*Record.size())+4);
data=new Record();
data.read(input);
if(data.getID()!=0)
database[count]=data;
}
}catch (EOFException eof){
System.out.println("End of File");
}catch(IOException e){
System.out.println("Error reading file");
System.exit(1);
}
}

//writing the array to the file
public void writeRecord(){
try{
output.writeInt(size);
for (int count=0;count<size;count++){
output.seek(((long)count*Record.size())+4);
database[count].write(output);
}
}catch(IOException e){
System.out.println("Error!");
System.exit(1);
}
}


public int menu() throws Exception{
BufferedReader userInput=new BufferedReader (new InputStreamReader(System.in));
System.out.println("\n\n\n\t**************Boxing Incorporated’s Poster Availability System************");
System.out.println("\t\t*******Main Menu*********");
System.out.println("\t\t*************************");
System.out.println("\n");
System.out.println("\t1)  Add New Poster");
System.out.println("\t2)  Delete Poster Record");
System.out.println("\t3)  Search For Poster");
System.out.println("\t4)  Display Poster Records");
System.out.println("\t5)  Modify Poster Records");
System.out.println("\t6)  Exit");
System.out.println("\n\n");
System.out.print("\tEnter Your Choice:");
String input=userInput.readLine();
return Integer.parseInt(input);
}

//validation for ID
public boolean isNotDuplicate(int temp){
for(int count=0;count<size;count++)
if(temp==database[count].getID()){
System.out.println("ID Already In Use");
return true;
}
return false;
}

public void AddRecord() throws Exception{
BufferedReader userInput=new BufferedReader(new InputStreamReader(System.in));
String name;
int ID;
int age;
do{
System.out.println("Enter ID:   ");
ID=Integer.parseInt(userInput.readLine());
}while(isNotDuplicate(ID));
do{
System.out.println("Enter Name:   ");
name=userInput.readLine();
if (name.length()>20)
    System.out.println("Sorry, Name Cannot Exceed 20 Characters");
}while(name.length()>20);
do{
System.out.println("Enter Age:    ");
age=Integer.parseInt(userInput.readLine());
if (age<0 || age >100)
    System.out.println("You Are Definitely Not More Than A 100 Years Old, Re-enter Age");
}while((age<0) || (age>100));
database[size]=new Record(name,age,ID);
size++;
}

public void display(int tgt){
System.out.println("\nName: "+database[tgt].getName());
System.out.println("Age:    "+database[tgt].getAge());
System.out.println("ID:     "+database[tgt].getID());
}

public int SearchRecord() throws Exception{
BufferedReader userInput=new BufferedReader(new InputStreamReader(System.in));
int tgt=0;
int x;
System.out.println("\nEnter ID:   ");
int ID=Integer.parseInt(userInput.readLine());

for (x=0; x<size; x++)

if(database[x].getID()==ID){
display(x);
return x;
}

if(x==size)
{
System.out.println("No Such User ID");
}
return -1;

}

public void DeleteRecord() throws Exception{
BufferedReader userInput=new BufferedReader(new InputStreamReader(System.in));
int tgt=0;
int x=0;
try{
tgt=SearchRecord();
}catch(Exception e){}
if(tgt!=-1){
System.out.println("Deletion Confirmation");
String reply=userInput.readLine();
if (reply.equals("y"))
{for (x=tgt; x<size; x++)
database[x]=database[x+1];
 size=size-1;
 System.out.println("Record Deleted");}
}
}

public void DisplayRecords(){
for(int count=0; count<size; count++)
display(count);
System.out.println("\n");
}

public void ModifyRecord() throws Exception{
BufferedReader userInput=new BufferedReader(new InputStreamReader(System.in));
String reply="";
int tgt=0;
try{
tgt=SearchRecord();
}catch(Exception e){}
if(tgt!=-1){
System.out.println("\nModify Name?");
reply=userInput.readLine();
if(reply.equals("y")){
String name=userInput.readLine();
database[tgt].setName(name);
}

System.out.println("\nModify Age?");
reply=userInput.readLine();
if(reply.equals("y")){
int age=Integer.parseInt(userInput.readLine());
database[tgt].setAge(age);
}

System.out.println("\nModify ID?");
reply=userInput.readLine();
if(reply.equals("y")){
int ID=Integer.parseInt(userInput.readLine());
database[tgt].setID(ID);
}
System.out.println("Record Updated");
}
}

public void Exit(){
try{
output=new RandomAccessFile("members1.dat","rw");
}catch(IOException e){
System.out.println("Error in Opening File");
System.exit(1);
}
writeRecord();
try{
output.close();
}catch(IOException e){
System.out.println("Problem Closing File");}
}

public void process (int count){
switch(count){
case 1:try{
AddRecord();
}catch(Exception e){}
break;
case 2:try{
DeleteRecord();
}catch(Exception e){}
break;
case 3:try{
SearchRecord();
}catch(Exception e){}
break;
case 4:try{
DisplayRecords();
}catch(Exception e){}
break;
case 5:try{
ModifyRecord();
}catch(Exception e){}
break;
case 6:Exit();
break;
default:System.out.println("\nEnter Your Choice");
}
}

public static void main(String args[]){
Enrol data=new Enrol();
int count=0;
do{
try{count=data.menu();
}catch(Exception e){}
data.process(count);
}while(count!=6);
}
}


[U][B]Record.java[/B][/U]
import java.io.*;
import java.util.*;
import java.text.*;

public class Record
{
    private String name, username, qty, size, price, details, arrival;
    private int ID, age;

    public Record(String name, String username, String qty, String size, int ID, int age, String price, String details, String arrival)
    {
        this.name=name;
        this.username=username;
        this.arrival=arrival;
        this.size=size;
        this.age=age;
        this.ID=ID;
        this.price=price;
        this.details=details;
        this.arrival=arrival;
    }

    public Record(){}

//READ
    public void read(RandomAccessFile file)throws IOException
    {

        char namearray[]=new char[100];
        for(int x=0; x<30; x++)
        namearray[x]=file.readChar();
        name=new String(namearray);

        char usernamearray[]=new char[100];
        for(int x=0; x<30; x++)
        usernamearray[x]=file.readChar();
        username=new String(usernamearray);

        char qtyarray[]=new char[9];
        for(int x=0; x<9; x++)
        qtyarray[x]=file.readChar();
        qty=new String(qtyarray);

        char sizearray[]=new char[50];
        for(int x=0; x<50; x++)
        sizearray[x]=file.readChar();
        size=new String(sizearray);

        ID=file.readInt();
        age=file.readInt();

        char pricearray[]=new char[6];
        for(int x=0; x<6; x++)
        pricearray[x]=file.readChar();
        price=new String(pricearray);

        char detailsarray[]=new char[200];
        for(int x=0; x<200; x++)
        detailsarray[x]=file.readChar();

        char arrivalarray[]=new char[12];
        for(int x=0; x<12; x++)
        arrivalarray[x]=file.readChar();
        arrival=new String(arrivalarray);

    }

    public void write(RandomAccessFile file)throws IOException
    {
        StringBuffer namebuffer, usernamebuffer, qtybuffer, sizebuffer, pricebuffer, detailsbuffer, arrivalbuffer;


        if(name!=null)
            namebuffer=new StringBuffer(name);
        else
            namebuffer=new StringBuffer(100);
            namebuffer.setLength(100);
            file.writeChars(namebuffer.toString());


        if(username!=null)
            usernamebuffer=new StringBuffer(username);
        else
            usernamebuffer=new StringBuffer(20);
            usernamebuffer.setLength(20);
            file.writeChars(usernamebuffer.toString());


        if(qty!=null)
            qtybuffer=new StringBuffer(qty);
        else
            qtybuffer=new StringBuffer(9);
            qtybuffer.setLength(9);
            file.writeChars(qtybuffer.toString());


        if(size!=null)
            sizebuffer=new StringBuffer(size);
        else
            sizebuffer=new StringBuffer(50);
            sizebuffer.setLength(50);
            file.writeChars(sizebuffer.toString());

            file.writeInt(ID);
            file.writeInt(age);



        if(price!=null)
            pricebuffer=new StringBuffer(price);
        else
            pricebuffer=new StringBuffer(6);
            pricebuffer.setLength(6);
            file.writeChars(pricebuffer.toString());


        if(details!=null)
            detailsbuffer=new StringBuffer(details);
        else
            detailsbuffer=new StringBuffer(200);
            detailsbuffer.setLength(200);
            file.writeChars(detailsbuffer.toString());


        if(arrival!=null)
            arrivalbuffer=new StringBuffer(arrival);
        else
            arrivalbuffer=new StringBuffer(12);
            arrivalbuffer.setLength(12);
            file.writeChars(arrivalbuffer.toString());

    }

    public void setName(String sname)
    {
        this.name=sname;
    }
    public String getName()
    {
        return name;
    }


public void setUsername(String susername)
    {
        this.username=susername;
    }
    public String getUserName()
    {
        return username;
    }


    public void setQty(String sqty)
    {
        this.qty=sqty;
    }
    public String getQty()
    {
        return qty;
    }


    public void setSize(String ssize)
    {
        this.size=ssize;
    }
    public String getSize()
    {
        return size;
    }


    public void setID(int ID)
    {
        this.ID=ID;
    }
    public int getID()
    {
        return ID;
    }

    public void setAge(int age)
    {
        this.age=age;
    }
        public int getAge()
    {
        return age;
    }


    public void setPrice(String sprice)
    {
        this.price=sprice;
    }
    public String getPrice()
    {
        return price;
    }

    public void setDetails(String sdetails)
    {
        this.details=sdetails;
    }
    public String getDetails()
    {
        return details;
    }



    public void setArrival(String sarrival)
    {
        this.arrival=sarrival;
    }
    public String getArrival()
    {
        return arrival;
    }


    public static long size()
    {
        return 1000;
    }
}

Edited 3 Years Ago by Dani: Formatting fixed

Attachments
import java.io.*;
import java.util.*;
import java.text.*;

public class Create{

	private Record blank;
	private RandomAccessFile file;

    public Create() {

    blank=new Record();
    int count;
    try{
    	file=new RandomAccessFile("members1.dat","rw");
    	for (count=0; count<100; count++)
    		blank.write(file);
    	}catch(IOException e){
    		System.out.println("Error Opening File");
    		System.exit(0);
    			}
    	}

public static void main (String args[]){
	Create x=new Create();
	}
}
import java.io.*;
import java.util.*;
import java.text.*;

public class Enrol{

private Record database[];
private int size;
private Record data;
private RandomAccessFile input;
private RandomAccessFile output;

//constructor
public Enrol(){
database=new Record[100];
size=0;
load();
}

//loading rom file to array
public void load(){
try{
input=new RandomAccessFile("members1.dat","r");
}catch(Exception e){
System.out.println("Error opening file");
System.exit(1);
}
readRecord();
try{
input.close();
}catch(IOException e){
System.out.println("Problem closing file");}
System.out.println("records loaded="+size);
}

//reading from file and filling the array.
public void readRecord(){
try{
long fp=0;
size=input.readInt();
for (int count=0;count<=size;count++){
fp=input.getFilePointer();
input.seek(((long)count*Record.size())+4);
data=new Record();
data.read(input);
if(data.getID()!=0)
database[count]=data;
}
}catch (EOFException eof){
System.out.println("End of File");
}catch(IOException e){
System.out.println("Error reading file");
System.exit(1);
}
}

//writing the array to the file
public void writeRecord(){
try{
output.writeInt(size);
for (int count=0;count<size;count++){
output.seek(((long)count*Record.size())+4);
database[count].write(output);
}
}catch(IOException e){
System.out.println("Error!");
System.exit(1);
}
}


public int menu() throws Exception{
BufferedReader userInput=new BufferedReader (new InputStreamReader(System.in));
System.out.println("\n\n\n\t**************Boxing Incorporateds Poster Availability System************");
System.out.println("\t\t*******Main Menu*********");
System.out.println("\t\t*************************");
System.out.println("\n");
System.out.println("\t1)  Add New Poster");
System.out.println("\t2)  Delete Poster Record");
System.out.println("\t3)  Search For Poster");
System.out.println("\t4)  Display Poster Records");
System.out.println("\t5)  Modify Poster Records");
System.out.println("\t6)  Exit");
System.out.println("\n\n");
System.out.print("\tEnter Your Choice:");
String input=userInput.readLine();
return Integer.parseInt(input);
}

//validation for ID
public boolean isNotDuplicate(int temp){
for(int count=0;count<size;count++)
if(temp==database[count].getID()){
System.out.println("ID Already In Use");
return true;
}
return false;
}

public void AddRecord() throws Exception{
BufferedReader userInput=new BufferedReader(new InputStreamReader(System.in));
String name;
int ID;
int age;
do{
System.out.println("Enter ID:   ");
ID=Integer.parseInt(userInput.readLine());
}while(isNotDuplicate(ID));
do{
System.out.println("Enter Name:   ");
name=userInput.readLine();
if (name.length()>20)
    System.out.println("Sorry, Name Cannot Exceed 20 Characters");
}while(name.length()>20);
do{
System.out.println("Enter Age:    ");
age=Integer.parseInt(userInput.readLine());
if (age<0 || age >100)
    System.out.println("You Are Definitely Not More Than A 100 Years Old, Re-enter Age");
}while((age<0) || (age>100));
database[size]=new Record(name,age,ID);
size++;
}

public void display(int tgt){
System.out.println("\nName: "+database[tgt].getName());
System.out.println("Age:    "+database[tgt].getAge());
System.out.println("ID:     "+database[tgt].getID());
}

public int SearchRecord() throws Exception{
BufferedReader userInput=new BufferedReader(new InputStreamReader(System.in));
int tgt=0;
int x;
System.out.println("\nEnter ID:   ");
int ID=Integer.parseInt(userInput.readLine());

for (x=0; x<size; x++)

if(database[x].getID()==ID){
display(x);
return x;
}

if(x==size)
{
System.out.println("No Such User ID");
}
return -1;

}

public void DeleteRecord() throws Exception{
BufferedReader userInput=new BufferedReader(new InputStreamReader(System.in));
int tgt=0;
int x=0;
try{
tgt=SearchRecord();
}catch(Exception e){}
if(tgt!=-1){
System.out.println("Deletion Confirmation");
String reply=userInput.readLine();
if (reply.equals("y"))
{for (x=tgt; x<size; x++)
database[x]=database[x+1];
 size=size-1;
 System.out.println("Record Deleted");}
}
}

public void DisplayRecords(){
for(int count=0; count<size; count++)
display(count);
System.out.println("\n");
}

public void ModifyRecord() throws Exception{
BufferedReader userInput=new BufferedReader(new InputStreamReader(System.in));
String reply="";
int tgt=0;
try{
tgt=SearchRecord();
}catch(Exception e){}
if(tgt!=-1){
System.out.println("\nModify Name?");
reply=userInput.readLine();
if(reply.equals("y")){
String name=userInput.readLine();
database[tgt].setName(name);
}

System.out.println("\nModify Age?");
reply=userInput.readLine();
if(reply.equals("y")){
int age=Integer.parseInt(userInput.readLine());
database[tgt].setAge(age);
}

System.out.println("\nModify ID?");
reply=userInput.readLine();
if(reply.equals("y")){
int ID=Integer.parseInt(userInput.readLine());
database[tgt].setID(ID);
}
System.out.println("Record Updated");
}
}

public void Exit(){
try{
output=new RandomAccessFile("members1.dat","rw");
}catch(IOException e){
System.out.println("Error in Opening File");
System.exit(1);
}
writeRecord();
try{
output.close();
}catch(IOException e){
System.out.println("Problem Closing File");}
}

public void process (int count){
switch(count){
case 1:try{
AddRecord();
}catch(Exception e){}
break;
case 2:try{
DeleteRecord();
}catch(Exception e){}
break;
case 3:try{
SearchRecord();
}catch(Exception e){}
break;
case 4:try{
DisplayRecords();
}catch(Exception e){}
break;
case 5:try{
ModifyRecord();
}catch(Exception e){}
break;
case 6:Exit();
break;
default:System.out.println("\nEnter Your Choice");
}
}

public static void main(String args[]){
Enrol data=new Enrol();
int count=0;
do{
try{count=data.menu();
}catch(Exception e){}
data.process(count);
}while(count!=6);
}
}
import java.io.*;
import java.util.*;
import java.text.*;

public class Record
{
	private String name, username, qty, size, price, details, arrival;
	private int ID, age;

	public Record(String name, String username, String qty, String size, int ID, int age, String price, String details, String arrival)
	{
		this.name=name;
		this.username=username;
		this.arrival=arrival;
		this.size=size;
		this.age=age;
		this.ID=ID;
		this.price=price;
		this.details=details;
		this.arrival=arrival;
	}

	public Record(){}

//READ
	public void read(RandomAccessFile file)throws IOException
	{

		char namearray[]=new char[100];
		for(int x=0; x<30; x++)
		namearray[x]=file.readChar();
		name=new String(namearray);

		char usernamearray[]=new char[100];
		for(int x=0; x<30; x++)
		usernamearray[x]=file.readChar();
		username=new String(usernamearray);

		char qtyarray[]=new char[9];
		for(int x=0; x<9; x++)
		qtyarray[x]=file.readChar();
		qty=new String(qtyarray);

		char sizearray[]=new char[50];
		for(int x=0; x<50; x++)
		sizearray[x]=file.readChar();
		size=new String(sizearray);

		ID=file.readInt();
		age=file.readInt();

		char pricearray[]=new char[6];
		for(int x=0; x<6; x++)
		pricearray[x]=file.readChar();
		price=new String(pricearray);

		char detailsarray[]=new char[200];
		for(int x=0; x<200; x++)
		detailsarray[x]=file.readChar();

		char arrivalarray[]=new char[12];
		for(int x=0; x<12; x++)
		arrivalarray[x]=file.readChar();
		arrival=new String(arrivalarray);

	}

	public void write(RandomAccessFile file)throws IOException
	{
		StringBuffer namebuffer, usernamebuffer, qtybuffer, sizebuffer, pricebuffer, detailsbuffer, arrivalbuffer;


		if(name!=null)
			namebuffer=new StringBuffer(name);
		else
			namebuffer=new StringBuffer(100);
			namebuffer.setLength(100);
			file.writeChars(namebuffer.toString());


		if(username!=null)
			usernamebuffer=new StringBuffer(username);
		else
			usernamebuffer=new StringBuffer(20);
			usernamebuffer.setLength(20);
			file.writeChars(usernamebuffer.toString());


		if(qty!=null)
			qtybuffer=new StringBuffer(qty);
		else
			qtybuffer=new StringBuffer(9);
			qtybuffer.setLength(9);
			file.writeChars(qtybuffer.toString());


		if(size!=null)
			sizebuffer=new StringBuffer(size);
		else
			sizebuffer=new StringBuffer(50);
			sizebuffer.setLength(50);
			file.writeChars(sizebuffer.toString());

			file.writeInt(ID);
			file.writeInt(age);



		if(price!=null)
			pricebuffer=new StringBuffer(price);
		else
			pricebuffer=new StringBuffer(6);
			pricebuffer.setLength(6);
			file.writeChars(pricebuffer.toString());


		if(details!=null)
			detailsbuffer=new StringBuffer(details);
		else
			detailsbuffer=new StringBuffer(200);
			detailsbuffer.setLength(200);
			file.writeChars(detailsbuffer.toString());


		if(arrival!=null)
			arrivalbuffer=new StringBuffer(arrival);
		else
			arrivalbuffer=new StringBuffer(12);
			arrivalbuffer.setLength(12);
			file.writeChars(arrivalbuffer.toString());

	}

	public void setName(String sname)
	{
		this.name=sname;
	}
	public String getName()
	{
		return name;
	}


public void setUsername(String susername)
	{
		this.username=susername;
	}
	public String getUserName()
	{
		return username;
	}


	public void setQty(String sqty)
	{
		this.qty=sqty;
	}
	public String getQty()
	{
		return qty;
	}


	public void setSize(String ssize)
	{
		this.size=ssize;
	}
	public String getSize()
	{
		return size;
	}


	public void setID(int ID)
	{
		this.ID=ID;
	}
	public int getID()
	{
		return ID;
	}

	public void setAge(int age)
	{
		this.age=age;
	}
		public int getAge()
	{
		return age;
	}


	public void setPrice(String sprice)
	{
		this.price=sprice;
	}
	public String getPrice()
	{
		return price;
	}

	public void setDetails(String sdetails)
	{
		this.details=sdetails;
	}
	public String getDetails()
	{
		return details;
	}



	public void setArrival(String sarrival)
	{
		this.arrival=sarrival;
	}
	public String getArrival()
	{
		return arrival;
	}


	public static long size()
	{
		return 1000;
	}
}
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