Question

Please use Java language! with as much as comment! thanks!

Write a program that displays a frame with a three labels and three textfields. The labels should be "width:", "height:", and "title:" and should each be followed by one textfield. The texfields should be initialized with default values (Example 400, 600, default title), but should be edited by the user. There should be a button (label it whatever you want, I don't care). If you click the button, a new frame should become visible that has the title and dimensions the user entered in the textfields on the first frame (or the default values, if the user did not enter anything).

Use JPanels and the EXIT_ON_CLOSE statement. Give the first panel some proper dimensions using the setSize method.

Answer 1

import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;

import javax.swing.JButton;
import javax.swing.JFrame;
import javax.swing.JLabel;
import javax.swing.JPanel;
import javax.swing.JTextField;

public class NewWindow {
   static JFrame frame = new JFrame("JFrame Example");

   public static void main(String s[]) {
       JPanel panel = new JPanel();
       panel.setLayout(null);
       JLabel label1 = new JLabel("Height");
       label1.setBounds(200, 50, 150, 30);

       final JTextField height = new JTextField(10);
       height.setBounds(300, 50, 100, 30);

       JLabel label2 = new JLabel("Width");
       label2.setBounds(200, 100, 150, 30);
       final JTextField width = new JTextField(10);
       width.setBounds(300, 100, 100, 30);

       JLabel label3 = new JLabel("Title");
       label3.setBounds(200, 150, 150, 30);
       final JTextField title = new JTextField(10);
       title.setBounds(300, 150, 100, 30);

       JButton login = new JButton();
       login.setText("Create Window");
       login.setBounds(300, 220, 250, 20);

       login.addActionListener(new ActionListener() {

           @Override
           public void actionPerformed(ActionEvent aE) {
               int h = Integer.parseInt(height.getText());
               int w = Integer.parseInt(width.getText());
               String t = title.getText();
               JFrame f = new JFrame(t);
               f.setSize(w, h);
               f.setVisible(true);
               f.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);

           }
       });

       panel.add(label1);
       panel.add(label2);
       panel.add(label3);
       panel.add(height);
       panel.add(width);
       panel.add(title);
       panel.add(login);
       frame.add(panel);

       frame.setSize(600, 300);
       frame.setLocationRelativeTo(null);
       frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
       frame.setVisible(true);
   }
}

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