lab10

lab/lab10/Question4/MyFrame.java

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+/*
+ * Author: CHEN Yongyuan (Walter) from OOP(1007)
+ * Date: 2022-05-01
+ * Description: This is the Main Frame class.
+ */
+
+import java.awt.BorderLayout;
+import javax.swing.JFrame;
+import javax.swing.JLabel;
+import javax.swing.JRadioButton;
+import javax.swing.JTextField;
+import javax.swing.JButton;
+import javax.swing.JCheckBox;
+import javax.swing.JComboBox;
+
+public class MyFrame extends JFrame {
+
+	public MyFrame() {
+		setSize(400, 300);
+		setTitle("MyFrame");
+		setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
+		setLocationRelativeTo(null);
+
+		// set the layout of the frame
+		setLayout(new BorderLayout());
+
+		// add the buttons to the frame
+		add(new JButton("Button 1"));
+		add(new JButton("Button 2"));
+
+		JLabel l = new JLabel("Enter your name: ");
+		JTextField tx = new JTextField("Type Text Here");
+		JCheckBox cb = new JCheckBox("I agree");
+		JRadioButton rb = new JRadioButton("Yes");
+		JComboBox<String> cb1 = new JComboBox<String>(new String[] { "Red", "Green", "Blue" });
+		JComboBox<Integer> cb2 = new JComboBox<Integer>(new Integer[] { 2, 7, -3, 24 });
+		// add the components to the frame
+		add(l, BorderLayout.PAGE_START);
+		add(tx, BorderLayout.LINE_START);
+		add(cb, BorderLayout.CENTER);
+		add(rb, BorderLayout.LINE_END);
+		add(cb1, BorderLayout.PAGE_END);
+		add(cb2);
+
+		setVisible(true);
+	}
+}

lab/lab10/Question4/Start.java

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+/**
+ * Answer to question.
+ *
+ * - Q: What happens when you run the program?
+ *
+ * - A: The layout change to 2 columns. Direction is LTR. The program change the
+ * layout to my desired, the layout use the number of columns that I specified.
+ *
+ * - Q: Use the mouse to resize the frame. Does the layout change?
+ *
+ * - A: No, the layout doesn't change.
+ *
+ * - Q: Set the number of rows to zero in the grid layout manager and try again.
+ * What happens?
+ *
+ * - A: BOOM SHAKARAKA!
+ *
+ * - Q: What happens when you add more than one component to one of the five
+ * areas of the frame? What happens when one of the five areas does not contain
+ * any component?
+ *
+ * - A: The component will overlapping.
+ */
+public class Start {
+	public static void main(String[] args) {
+		// Dispather
+		javax.swing.SwingUtilities.invokeLater(new Runnable() {
+			@Override
+			public void run() {
+				new MyFrame();
+			}
+		});
+	}
+}