Set Password Symbol example in java

import javax.swing.JPasswordField;  

import javax.swing.JFrame;  

  

import java.awt.FlowLayout;  

  

public class SetPasswordSymbol  

{  

public static void main(String[]args)  

{  

 //Create a password field with number of columns equal to 10  

 JPasswordField passwordField=new JPasswordField(10);  

  

 //Set password symbol  

 //In my case i use *  

 //You can change for what you want.But make sure it is only one character  

 //This is because, method setEchoChar receive only one character  

 passwordField.setEchoChar('*');  

  

  

 //Create a JFrame with title ( Set Password Symbol )  

 JFrame frame=new JFrame("Set Password Symbol");  

  

 //Set JFrame layout to FlowLayout  

 frame.setLayout(new FlowLayout());  

  

 //Add password field into JFrame  

 frame.add(passwordField);  

  

 //Set default close operation for JFrame  

 frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);  

  

 //Set JFrame size to :  

 //WIDTH : 300 pixels  

 //HEIGHT : 65 pixels  

 frame.setSize(300,65);  

  

 //Make JFrame visible. So we can see it  

 frame.setVisible(true);  

}  

}