JPasswordField and getPassword()

A JPasswordField component allows entry of a password as a single line of input and prevents the characters in the password from being seen.

getPassword()

The getPassword method return the password as an array of characters.

Program

gdfggf

 

 

 

Program Source

import javax.swing.JFrame;
import javax.swing.JLabel;
import javax.swing.JButton;
import javax.swing.JPasswordField;
import javax.swing.JTextField;
import javax.swing.JOptionPane;
import java.awt.FlowLayout;
import java.awt.event.ActionListener;
import java.awt.event.ActionEvent;

class Frame extends JFrame implements ActionListener{
 
    private JPasswordField jpf;
    private JTextField jtf;
    private JButton jb;
    private String name = "",pass = "";
    private char getpass[];

    Frame()
    {
        setTitle("JPasswordField with ActionListener");
        setLayout(new FlowLayout());
        setJTextFieldandJPasswordField();
        setAction();
        setSize(700, 200);
        setVisible(true);
        setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
    }
 
    private void setJTextFieldandJPasswordField()
    {
        JLabel     username = new JLabel("User name");
        jtf = new JTextField("User name",10);
        JLabel     password = new JLabel("Password");
        jpf = new JPasswordField(10);
        jb = new JButton("Enter");
        JLabel     nameAndPass = new JLabel("User name  :  HAJSOF    Password  :  123456");
        add(username);
        add(jtf);
        add(password);
        add(jpf);
        add(jb);
        add(nameAndPass);
    }
 
    private void setAction()
    {
        jb.addActionListener(this);
    }
 
    public void actionPerformed(ActionEvent eve)
    {
        name = jtf.getText();
        getpass = jpf.getPassword();
        pass = String.valueOf(getpass);
     
        if(name.equals("HAJSOF") && pass.equals("123456"))
            JOptionPane.showMessageDialog(rootPane, "Login Successful");
        else
            JOptionPane.showMessageDialog(rootPane, "Username or Password incorrect");
    }
}

public class Javaapp {
 
    public static void main(String[] args) {
     
        Frame frame = new Frame();
    }
}

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