hello/java/samples/properties/swing2/AuthenticationFrame.java

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package propertiesswing2;

import java.awt.Container;
import java.awt.FlowLayout;
import java.awt.GridBagConstraints;
import java.awt.GridBagLayout;
import java.awt.HeadlessException;
import javax.swing.JButton;
import javax.swing.JFrame;
import javax.swing.JLabel;
import javax.swing.JMenu;
import javax.swing.JMenuBar;
import javax.swing.JMenuItem;
import javax.swing.JPanel;
import javax.swing.JPasswordField;
import javax.swing.JTextField;

/**
 *
 * @author denis
 */
public class AuthenticationFrame extends JFrame{

    public AuthenticationFrame() {
        
        setTitle("Authentication");
        setDefaultCloseOperation(DISPOSE_ON_CLOSE);
        init();
        setSize(500, 200);
        setResizable(false);
        setLocationRelativeTo(null);
        //pack();
        setVisible(true);
    }

    private void init() {
        JMenuBar bar = new JMenuBar();
        setJMenuBar(bar);
        JMenu menu = new JMenu("File");
        bar.add(menu);
        JMenuItem openItem = new JMenuItem("Open");
        JMenuItem closeItem = new JMenuItem("Close");
        menu.add(openItem);
        menu.add(closeItem);
        closeItem.addActionListener(e -> {
            System.exit(0);
        });
                
        
        
        GridBagLayout gbl = new GridBagLayout();
        GridBagConstraints constraints = new GridBagConstraints();
        Container container = getContentPane();
        container.setLayout(gbl);
        
        
        constraints.gridx = 1;
        constraints.gridy = 0;
        JLabel authLabel = new JLabel("Authorization");
        container.add(authLabel, constraints);
        
        JLabel usernameLanbel = new JLabel("username");
        JTextField usernameText = new JTextField(30);
        constraints.gridx = 0;
        constraints.gridy = 1;
        container.add(usernameLanbel, constraints);
        constraints.gridx = 1;
        constraints.gridy = 1;
        container.add(usernameText, constraints);
        
        JLabel passwordLanbel = new JLabel("password");
        JPasswordField passwordText = new JPasswordField(30);
        constraints.gridx = 0;
        constraints.gridy = 2;
        container.add(passwordLanbel, constraints);
        constraints.gridx = 1;
        constraints.gridy = 2;
        container.add(passwordText, constraints);
        
        JButton singIn = new JButton("SingIn");
        JButton cancel = new JButton("Cancel");
        JPanel panel = new JPanel(new FlowLayout(FlowLayout.CENTER, 30, 5));
        constraints.gridx = 1;
        constraints.gridy = 3;
        container.add(panel, constraints);
        panel.add(singIn);
        panel.add(cancel);
        
        singIn.addActionListener(e -> {
            UserCheck check = new UserCheck();
            if(check.check(usernameText.getText(), passwordText.getText())) System.out.println("Авторизация успешна");
            else System.out.println("Имя пользователя или пароль не верны");
        });
        
        cancel.addActionListener(e -> {
            System.exit(0);
        });
    }
}