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help with command line program run
hello friends..got a problem again..
I'm developing a software for one of our assignments.I have coded that program using Netbeans but we have to upload the assignment as one java file.So I created one java file and again checked in netbeans as a single file.It works perfectly.And then I tried to compile and run that file using command prompt.But then It generate some errors. I'm attaching a image of errors generated and the source file.Please can you people help me out ?
import java.io.*;
import java.util.*;
class newMain {
public static void main(String[] args) {
ArrayList<house> House = new ArrayList<house>();
house tempHouse=new house();
factoryORstate fac =new factoryORstate();
int input=0,nic;
String temp;
try{
BufferedReader buff2 = new BufferedReader(new InputStreamReader(System.in));
while(true){
System.out.print("\n\nWhat do you wanto do ?");
System.out.print("\n Add new person ------------------ 1 ");
System.out.print("\n view person details ------------- 2 ");
System.out.print("\n Add new House ------------------- 3 ");
System.out.print("\n Add new Factory/State ----------- 4 ");
System.out.print("\n exit ---------------------------- 6 ");
// buff2.reset();
temp = buff2.readLine();
input=Integer.parseInt(temp);
// System.out.print(input);
switch(input){
case 1:
// home[0].setData();
nic= tempHouse.setData();
tempHouse.save(nic);
break;
case 2:
System.out.print("\n Enter the NIC no of the person : ");
temp = buff2.readLine();
nic=Integer.parseInt(temp);
System.out.print(tempHouse.getDetails(nic));
break;
case 3:
House.add(tempHouse);
tempHouse.member.clear();
break;
case 4:
fac.setData();
break;
case 6:
System.exit(0);
default:
continue;
}
}
}catch(Exception e){
System.out.print("\n Error--"+e.toString());
}
}
}
abstract class building {
private int buildingNo;
private ArrayList<String> houses = new ArrayList<String>();
private ArrayList<String> lands = new ArrayList<String>();
private ArrayList<String> vehicles = new ArrayList<String>();
public void setNo(int inNo){
buildingNo=inNo;
}
public void setHouse(String house){
houses.add(house);
}
public void setLand(String land){
lands.add(land);
}
public void setVehicle(String vehi){
vehicles.add(vehi);
}
public int getNo(){
return buildingNo;
}
public ArrayList getHouse(){
return houses;
}
public ArrayList getland(){
return lands;
}
public ArrayList getvehicle(){
return vehicles;
}
}
class house extends building{
// private ArrayList<person> member =new ArrayList<person>();
private int numberOdChildren;
Hashtable member =new Hashtable();
public int setData(){
int inNIC=-1;
person tempPerson =new person();
try{
BufferedReader buff1 = new BufferedReader(new InputStreamReader(System.in));
person tempPerson2 =new person();
// System.out.print("\n\n\n\n "+tempPerson.pData.getName());
/*get personal data*/
System.out.print("\nEnter personal data\n");
System.out.print("Full Name :");
tempPerson2.pData.setName(buff1.readLine());
// System.out.print("Date Of Birth yyyy/mm/dd :");
// tempPerson.pData.setDateOfBirth(buff1.readLine());
System.out.print("ID number :");
inNIC=Integer.parseInt(buff1.readLine());
tempPerson2.pData.setNICno(inNIC);
System.out.print("Contact number xxxxxxxxxx :");
tempPerson.pData.setcontactNo(Integer.parseInt(buff1.readLine()));
System.out.print("nGender (male/female) :");
tempPerson.setSex(buff1.readLine());
System.out.print("Relationship to cheif occupant :");
tempPerson.setRelationship(buff1.readLine());
System.out.print("DS division :");
tempPerson.setDivision(buff1.readLine());
System.out.print("District :");
tempPerson.setDistrict(buff1.readLine());
/*get professional data*/
System.out.print("\nEnter professional data\n");
System.out.print("Profession :");
tempPerson.proData.setProfession(buff1.readLine());
System.out.print("Salary :");
tempPerson.proData.setSalary(Integer.parseInt(buff1.readLine()));
/*get Educational data*/
System.out.print("\nEnter Educational data\n");
System.out.print("School :");
tempPerson.eData.setSchool(buff1.readLine());
System.out.print("Advanced Level Results :");
tempPerson.eData.setResult(buff1.readLine());
System.out.print("Details of Higher Studies :");
tempPerson.eData.setHigherStudy(buff1.readLine());
member.put(tempPerson2.pData.getNICno(), tempPerson2);
//buff1.close();
}catch(IOException e){
System.out.println("\nError--"+e.toString());
}
return inNIC;
}
void setChild(int num){
numberOdChildren=num;
}
public String getDetails(int NIC){
person tempPerson =new person();
tempPerson=(person)member.get(NIC);
return "name :"+tempPerson.pData.getName()+"\n "
+ "Date Of Birth :"+tempPerson.pData.getDateOfBirth()+"\n "
+ "ID number :"+tempPerson.pData.getNICno()+"\n "
+ "Contact number :"+tempPerson.pData.getcontactNo()+"\n "
+ "Gender :"+tempPerson.getSex()+"\n "
+ "Relationship to cheif occupant :"+tempPerson.getRelationship()+"\n "
+ "DS division :"+tempPerson.getDivision()+"\n "
+ "District :"+tempPerson.getDistrict()+"\n "
+ "Profession :"+tempPerson.proData.getProfession()+"\n"
+ "Salary :"+tempPerson.proData.getSalary()+"\n "
+ "School :"+tempPerson.eData.getSchool()+"\n "
+ "Advanced Level Results :"+tempPerson.eData.getresult()+"\n "
+ "Details of Higher Studies :"+tempPerson.eData.getHigherStudy()+"\n ";
}
public void save(int NIC){
person tempPerson =new person();
tempPerson=(person)member.get(NIC);
try{
BufferedWriter buffw = new BufferedWriter(new FileWriter("d:\\data.txt",true));
buffw.write(getDetails(NIC));
buffw.newLine();
buffw.close();
}catch(Exception e){
System.out.print("Error-- "+e.toString());
}
}
}
class person {
private String relationshipToChiefOccupant;
private String sex,DSdivision,district;
personalData pData = new personalData();
professionalData proData = new professionalData();
educationalData eData =new educationalData();
public void setData(String relationship,String inSex,String inDivision,String inDistrict){
relationshipToChiefOccupant=relationship;
sex = inSex;
DSdivision=inDivision;
district=inDistrict;
}
public void setRelationship(String relationship){
relationshipToChiefOccupant=relationship;
}
public void setSex(String inSex){
sex = inSex;
}
public void setDivision(String inDivision){
DSdivision=inDivision;
}
public void setDistrict(String inDistrict){
district=inDistrict;
}
public String getRelationship(){
return relationshipToChiefOccupant;
}
public String getSex(){
return sex;
}
public String getDivision(){
return DSdivision;
}
public String getDistrict(){
return district;
}
}
class personalData {
private String name,dateOfBirth;
private int NICno,contactNo;
public void setName(String inName){
name=inName;
}
public void setDateOfBirth(String dob){
dateOfBirth=dob;
}
public void setNICno(int NIC){
NICno=NIC;
}
public void setcontactNo(int contact){
contactNo=contact;
}
public String getName(){
return name;
}
public String getDateOfBirth(){
return dateOfBirth;
}
public int getNICno(){
return NICno;
}
public int getcontactNo(){
return contactNo;
}
}
class professionalData {
private String profession;
private int salary;
public void setProfession(String inprofession){
profession=inprofession;
}
public void setSalary(int inSalary){
salary=inSalary;
}
public String getProfession(){
return profession;
}
public int getSalary(){
return salary;
}
}
class educationalData {
private String school,resultAL,higherStudies;
public void setSchool(String inSchool){
school=inSchool;
}
public void setResult(String result){
resultAL=result;
}
public void setHigherStudy(String inHigherStdy){
higherStudies=inHigherStdy;
}
public String getSchool(){
return school;
}
public String getresult(){
return resultAL;
}
public String getHigherStudy(){
return higherStudies;
}
}
class factoryORstate extends building {
private String type,size,owner;
private int workforce;
public void setData(){
try{
BufferedReader buff1 = new BufferedReader(new InputStreamReader(System.in));
System.out.print("\nEnter data for factory/state\n");
System.out.print("Type (facotory or state) :");
setType(buff1.readLine());
System.out.print("size (large, medium or small) :");
setSize(buff1.readLine());
System.out.print("Owners name :");
setOwner(buff1.readLine());
System.out.print("size of work force :");
setWorkForce(Integer.parseInt(buff1.readLine()));
}catch(Exception e){
}
}
public void setType(String inType){
type=inType;
}
public void setSize(String inSize){
size=inSize;
}
public void setOwner(String inOwner){
owner=inOwner;
}
public void setWorkForce(int inWorkForce){
workforce=inWorkForce;
}
public String getType(){
return type;
}
public String getSize(){
return size;
}
public String getOwner(){
return owner;
}
public int getWorkForce(){
return workforce;
}
}Here's how to copy and paste the command prompt:
To copy the contents of the command prompt window:
Click on Icon in upper left corner
Select Edit
Select 'Select All' - The selection will show
Click in upper left again
Select Edit and click 'Copy'
Paste here.
Your posted code does NOT have a class named: Main.
NormR1
Posting Expert
Moderator
6,677 posts since Jun 2010
Reputation Points: 1,138
Solved Threads: 656
Well ... if you take a closer look at your code, you'll see that you haven't placed your main method in the Main class, but in a 'newMain' class. your JVM is looking for the Main class in your code, but since it's not there, it runs into an exception.
Sorri.. It was a mistake.. mistake in this code but not the code that i tried to run at cmd.. I'm sorry about that.I'll edit this code..
Here's how to copy and paste the command prompt: To copy the contents of the command prompt window: Click on Icon in upper left corner Select Edit Select 'Select All' - The selection will show Click in upper left again Select Edit and click 'Copy'
Paste here.
Your posted code does NOT have a class named: Main.
Thank you for the tip.
I'm sorry about that because this is not the code I tried to run at cmd.. the original code has a class named Main..I'll post the original one.
code
import java.io.*;
import java.util.*;
class main {
public static void main(String[] args) {
ArrayList<house> House = new ArrayList<house>();
house tempHouse=new house();
factoryORstate fac =new factoryORstate();
int input=0,nic;
String temp;
try{
BufferedReader buff2 = new BufferedReader(new InputStreamReader(System.in));
while(true){
System.out.print("\n\nWhat do you wanto do ?");
System.out.print("\n Add new person ------------------ 1 ");
System.out.print("\n view person details ------------- 2 ");
System.out.print("\n Add new House ------------------- 3 ");
System.out.print("\n Add new Factory/State ----------- 4 ");
System.out.print("\n exit ---------------------------- 6 ");
// buff2.reset();
temp = buff2.readLine();
input=Integer.parseInt(temp);
// System.out.print(input);
switch(input){
case 1:
// home[0].setData();
nic= tempHouse.setData();
tempHouse.save(nic);
break;
case 2:
System.out.print("\n Enter the NIC no of the person : ");
temp = buff2.readLine();
nic=Integer.parseInt(temp);
System.out.print(tempHouse.getDetails(nic));
break;
case 3:
House.add(tempHouse);
tempHouse.member.clear();
break;
case 4:
fac.setData();
break;
case 6:
System.exit(0);
default:
continue;
}
}
}catch(Exception e){
System.out.print("\n Error--"+e.toString());
}
}
}
abstract class building {
private int buildingNo;
private ArrayList<String> houses = new ArrayList<String>();
private ArrayList<String> lands = new ArrayList<String>();
private ArrayList<String> vehicles = new ArrayList<String>();
public void setNo(int inNo){
buildingNo=inNo;
}
public void setHouse(String house){
houses.add(house);
}
public void setLand(String land){
lands.add(land);
}
public void setVehicle(String vehi){
vehicles.add(vehi);
}
public int getNo(){
return buildingNo;
}
public ArrayList getHouse(){
return houses;
}
public ArrayList getland(){
return lands;
}
public ArrayList getvehicle(){
return vehicles;
}
}
class house extends building{
// private ArrayList<person> member =new ArrayList<person>();
private int numberOdChildren;
Hashtable member =new Hashtable();
public int setData(){
int inNIC=-1;
person tempPerson =new person();
try{
BufferedReader buff1 = new BufferedReader(new InputStreamReader(System.in));
person tempPerson2 =new person();
// System.out.print("\n\n\n\n "+tempPerson.pData.getName());
/*get personal data*/
System.out.print("\nEnter personal data\n");
System.out.print("Full Name :");
tempPerson2.pData.setName(buff1.readLine());
// System.out.print("Date Of Birth yyyy/mm/dd :");
// tempPerson.pData.setDateOfBirth(buff1.readLine());
System.out.print("ID number :");
inNIC=Integer.parseInt(buff1.readLine());
tempPerson2.pData.setNICno(inNIC);
System.out.print("Contact number xxxxxxxxxx :");
tempPerson.pData.setcontactNo(Integer.parseInt(buff1.readLine()));
System.out.print("nGender (male/female) :");
tempPerson.setSex(buff1.readLine());
System.out.print("Relationship to cheif occupant :");
tempPerson.setRelationship(buff1.readLine());
System.out.print("DS division :");
tempPerson.setDivision(buff1.readLine());
System.out.print("District :");
tempPerson.setDistrict(buff1.readLine());
/*get professional data*/
System.out.print("\nEnter professional data\n");
System.out.print("Profession :");
tempPerson.proData.setProfession(buff1.readLine());
System.out.print("Salary :");
tempPerson.proData.setSalary(Integer.parseInt(buff1.readLine()));
/*get Educational data*/
System.out.print("\nEnter Educational data\n");
System.out.print("School :");
tempPerson.eData.setSchool(buff1.readLine());
System.out.print("Advanced Level Results :");
tempPerson.eData.setResult(buff1.readLine());
System.out.print("Details of Higher Studies :");
tempPerson.eData.setHigherStudy(buff1.readLine());
member.put(tempPerson2.pData.getNICno(), tempPerson2);
//buff1.close();
}catch(IOException e){
System.out.println("\nError--"+e.toString());
}
return inNIC;
}
void setChild(int num){
numberOdChildren=num;
}
public String getDetails(int NIC){
person tempPerson =new person();
tempPerson=(person)member.get(NIC);
return "name :"+tempPerson.pData.getName()+"\n "
+ "Date Of Birth :"+tempPerson.pData.getDateOfBirth()+"\n "
+ "ID number :"+tempPerson.pData.getNICno()+"\n "
+ "Contact number :"+tempPerson.pData.getcontactNo()+"\n "
+ "Gender :"+tempPerson.getSex()+"\n "
+ "Relationship to cheif occupant :"+tempPerson.getRelationship()+"\n "
+ "DS division :"+tempPerson.getDivision()+"\n "
+ "District :"+tempPerson.getDistrict()+"\n "
+ "Profession :"+tempPerson.proData.getProfession()+"\n"
+ "Salary :"+tempPerson.proData.getSalary()+"\n "
+ "School :"+tempPerson.eData.getSchool()+"\n "
+ "Advanced Level Results :"+tempPerson.eData.getresult()+"\n "
+ "Details of Higher Studies :"+tempPerson.eData.getHigherStudy()+"\n ";
}
public void save(int NIC){
person tempPerson =new person();
tempPerson=(person)member.get(NIC);
try{
BufferedWriter buffw = new BufferedWriter(new FileWriter("d:\\data.txt",true));
buffw.write(getDetails(NIC));
buffw.newLine();
buffw.close();
}catch(Exception e){
System.out.print("Error-- "+e.toString());
}
}
}
class person {
private String relationshipToChiefOccupant;
private String sex,DSdivision,district;
personalData pData = new personalData();
professionalData proData = new professionalData();
educationalData eData =new educationalData();
public void setData(String relationship,String inSex,String inDivision,String inDistrict){
relationshipToChiefOccupant=relationship;
sex = inSex;
DSdivision=inDivision;
district=inDistrict;
}
public void setRelationship(String relationship){
relationshipToChiefOccupant=relationship;
}
public void setSex(String inSex){
sex = inSex;
}
public void setDivision(String inDivision){
DSdivision=inDivision;
}
public void setDistrict(String inDistrict){
district=inDistrict;
}
public String getRelationship(){
return relationshipToChiefOccupant;
}
public String getSex(){
return sex;
}
public String getDivision(){
return DSdivision;
}
public String getDistrict(){
return district;
}
}
class personalData {
private String name,dateOfBirth;
private int NICno,contactNo;
public void setName(String inName){
name=inName;
}
public void setDateOfBirth(String dob){
dateOfBirth=dob;
}
public void setNICno(int NIC){
NICno=NIC;
}
public void setcontactNo(int contact){
contactNo=contact;
}
public String getName(){
return name;
}
public String getDateOfBirth(){
return dateOfBirth;
}
public int getNICno(){
return NICno;
}
public int getcontactNo(){
return contactNo;
}
}
class professionalData {
private String profession;
private int salary;
public void setProfession(String inprofession){
profession=inprofession;
}
public void setSalary(int inSalary){
salary=inSalary;
}
public String getProfession(){
return profession;
}
public int getSalary(){
return salary;
}
}
class educationalData {
private String school,resultAL,higherStudies;
public void setSchool(String inSchool){
school=inSchool;
}
public void setResult(String result){
resultAL=result;
}
public void setHigherStudy(String inHigherStdy){
higherStudies=inHigherStdy;
}
public String getSchool(){
return school;
}
public String getresult(){
return resultAL;
}
public String getHigherStudy(){
return higherStudies;
}
}
class factoryORstate extends building {
private String type,size,owner;
private int workforce;
public void setData(){
try{
BufferedReader buff1 = new BufferedReader(new InputStreamReader(System.in));
System.out.print("\nEnter data for factory/state\n");
System.out.print("Type (facotory or state) :");
setType(buff1.readLine());
System.out.print("size (large, medium or small) :");
setSize(buff1.readLine());
System.out.print("Owners name :");
setOwner(buff1.readLine());
System.out.print("size of work force :");
setWorkForce(Integer.parseInt(buff1.readLine()));
}catch(Exception e){
}
}
public void setType(String inType){
type=inType;
}
public void setSize(String inSize){
size=inSize;
}
public void setOwner(String inOwner){
owner=inOwner;
}
public void setWorkForce(int inWorkForce){
workforce=inWorkForce;
}
public String getType(){
return type;
}
public String getSize(){
return size;
}
public String getOwner(){
return owner;
}
public int getWorkForce(){
return workforce;
}
}
ErrorC:\Users\SUDHEERA\Desktop\java>javac main.java
Note: main.java uses unchecked or unsafe operations.
Note: Recompile with -Xlint:unchecked for details.
C:\Users\SUDHEERA\Desktop\java>java main
Exception in thread "main" java.lang.NoClassDefFoundError: main
Caused by: java.lang.ClassNotFoundException: main
at java.net.URLClassLoader$1.run(URLClassLoader.java:202)
at java.security.AccessController.doPrivileged(Native Method)
at java.net.URLClassLoader.findClass(URLClassLoader.java:190)
at java.lang.ClassLoader.loadClass(ClassLoader.java:306)
at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:301)
at java.lang.ClassLoader.loadClass(ClassLoader.java:247)
Could not find the main class: main. Program will exit.
C:\Users\SUDHEERA\Desktop\java>
Do a dir command after the javac compile step to show what files are in the directory.
Is the CLASSPATH environment variable set? Does it have a . in it?
If not either add one to it or use the -cp . option for java:
java -cp . main
BTW Naming conventions for classes use Uppercase for the first letter: Main
NormR1
Posting Expert
Moderator
6,677 posts since Jun 2010
Reputation Points: 1,138
Solved Threads: 656
Do a dir command after the javac compile step to show what files are in the directory. Is the CLASSPATH environment variable set? Does it have a . in it? If not either add one to it or use the -cp . option for java: java -cp . main
BTW Naming conventions for classes use Uppercase for the first letter: Main
Thank you for helping.. It worked.. But can I make this code to work just entering java Main at cmd ??
and ... case sensitivity is in play: main is not the same as Main
Thank you friend.. I got it.. :)
This question has already been solved
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