How can I make the password saved from a txt file not in a console

Question

Here is my code:

import javax.swing.*;
import java.awt.event.*;
import java.awt.*;

public class password{
private static String password = "pass" //Thanks!
public static void main(String [] args){
JFrame a = new JFrame("Password");
a.setSize(400,100);
a.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
a.setVisible(true);

JLabel label = new JLabel("Enter password");
JPanel panel = new JPanel();

a.add(panel);

JPasswordField pass = new JPasswordField(10);
pass.setEchoChar('*');
pass.addActionListener(new Action());
panel.add(label, BorderLayout.WEST);
panel.add(pass, BorderLayout.EAST);
}
static class Action implements ActionListener{
public void actionPerformed(ActionEvent e){

JPasswordField input = (JPasswordField) e.getSource();
char[]passy = input.getPassword();
String p = new String (passy);

if(p.equals(password)){
JOptionPane.showMessageDialog(null,"Correct");
}else{
JOptionPane.showMessageDialog(null,"Incorrect");
}
}
}
}

Answer 1

Use the File class then read from it with scanner:

import java.io.File;
import java.io.IOException;
import java.util.Scanner;

File f = new File(C:\directory.txt);
if(!f.exists()){
try{
f.createNewFile();
}
catch(IOexception e){
e.printStackTrace();
}
}
Scanner scan = new Scanner(file);
String pass = scan.next(); //password from file directory