Hi Friend,

Try this:

import javax.swing.*;
public class MultiplicationTable{
public static void main(String args[]){
    StringBuffer buffer=new StringBuffer();
String number=JOptionPane.showInputDialog(null,"Enter number whose table is to be displayed");
int n=Integer.parseInt(number);
int result;
for (int a = 1; a <= 10; a++)
{
result = n * a;
buffer.append(n);
buffer.append(" * ");
buffer.append(a);
buffer.append(" = ");
buffer.append(result);
buffer.append("\n");
}
JOptionPane.showMessageDialog(null,buffer.toString());
}
}

Thanks