pls help!! can u give me some tips how to delete a string or list in a textfile based on this code....i created this code but i dont know how to delete it..pls explain in simple english because im not American..... :D tnx a lot...ur response is very much appreciated... =)
import java.io.*;
import java.io.FileInputStream;
import java.io.FileOutputStream;
import java.io.ObjectInputStream;
import java.io.ObjectOutputStream;
public class TextFile
{
public static BufferedReader stdin = new BufferedReader(new InputStreamReader(System.in));
public static String[] person;
public static String[] tempPerson;
public static String[] sepTemp;
public static int xCtr;
public static void mainMenu()
{
System.out.println("1] Insert");
System.out.println("2] Delete"); ////////////////
System.out.println("3] Exit");///////////////
}
public static void insertData() throws IOException ///insert
{
System.out.print("Enter name: ");
String pName = stdin.readLine();
String temp;
if (xCtr != 0)
{
temp =tempPerson[0] + ", " + pName;
}
else
{
temp = pName;
xCtr = 1;
}
FileOutputStream x = new FileOutputStream("myTextFile.dat");
ObjectOutputStream y = new ObjectOutputStream(x);
y.writeObject(new String[] {temp});
System.out.println("New Entry Updated...");
y.close();
}
public static void displayInitData() //displayInitial data
{
try
{
FileInputStream x = new FileInputStream("myTextFile.dat");
ObjectInputStream y = new ObjectInputStream(x);
tempPerson = (String[])(y.readObject());
sepTemp = new String[100000];
sepTemp = tempPerson[0].split(", ");
int i = 0;
do
{
person[i] = sepTemp[i];
i = i + 1;
}
while(i<sepTemp.length);
xCtr = i;
}
catch(Exception m)
{
m.getMessage();
}
}
public static void displayData() //display data
{
int i=0;
do
{
System.out.println(sepTemp[i]);
i = i + 1;
}
while(i<sepTemp.length);
}
public static void main (String[] args) throws IOException, Exception
{
int choiceMenu;
person = new String[100000];
tempPerson = new String[100000];
displayInitData();
do
{
mainMenu();
System.out.print("Enter Choice: ");
choiceMenu = Integer.parseInt(stdin.readLine());
switch(choiceMenu)
{
case 1: displayInitData();
insertData();
break;
case 2:delete();
break;
case 3:
if (xCtr > 0)
{
displayInitData();
displayData();
}
else
System.out.println("No Record");
break;
default:
}
}
while(choiceMenu!=3);
}
}