how to remove comma from last of three string..

Question

my program output is USA,Dubai,India,
what i want-USA,Dubai,India

Answer 1

If always last character is , then you can use this,
str = str.substring(0, str.length - 2);

Hope this will help you

Answer 2

You should place this outside the for loop, like this
for (string v1.....)
{
....
}
data = data.substring (0,data.length - 2);

Hope you understand this time

Answer 3

Sorry, length is not the member variable. It's a method

so call like
data = data.substring(0, data.length() - 1);

For you reference I have added the sample in my code playground something like "Substring to remove last character"

Answer 4

Check my code in playground and it's working it may help you

Answer 5

Put substring statement outside the loop

Based on the op I guess u put this statement inside the loop

Answer 6

Anytime brother ☺

Answer 7

Did you try with substring approach?

Answer 8

Guess it's working now

Answer 9

import java.awt.*;
import java.awt.event.*;
import java.awt.List;
class samplem extends Frame implements ActionListener
{
Label l1;
Button b1;
List l;
samplem()
{
setLayout(null);
l1 =new Label ();
b1 =new Button("Submit");
l=new List(3,true);
l.add("India");
l.add("USA");
l.add("China");
l.add("Japan");
l.add("Netherlands")­;
l1.setBounds(50,300,­300,20);
b1.setBounds(50,200,­100,20);
l.setBounds(50,100,1­00,50);
b1.addActionListener­(this);
add(b1);
add(l);
add(l1);
}
public void actionPerformed(Acti­onEvent aa)
{
if (aa.getSource()==b1)­;
{
String data ="Selected Countries are : "; //Variable
for(String v:l.getSelectedItems­())
{
data=data + v+",";
v.deleteCharAt(v.len­gth() - 1);
}
l1.setText(data);

}

}

public static void main(String a[])
{
samplem ob=new samplem();
ob.setSize(500,500);
ob.setVisible(true);
}
}

Answer 10

i triedthis v.deleteCharAt(v.lenth()-1);

Answer 11

it did not work..

Answer 12

can u please implement it in the coding..it will help me alot to understand

Answer 13

error is. data=data.substring(0,data.length-2)
^
cant fine symbol

Answer 14

in implemented like... for(String......
{
data=data....
}
data=data.substring(0......
l1.setText(data)

Answer 15

same error dear :( ..

Answer 16

works but removed all between the countries.. result showing.. IndiaUsaChina

Answer 17

it works bro..i was implementing it in for loop.. now implemented it out side loop..its working ... thanks my dear brother you helped me alot :) God bkess you