lab10

lab/lab10/Question6/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;
+
+public class MyFrame extends JFrame {
+
+	public MyFrame() {
+		setTitle("MyFrame");
+		setSize(400, 300);
+		setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
+
+		// center the frame
+		setLocationRelativeTo(null);
+
+		setLayout(new BorderLayout());
+
+		// my draw panel
+		add(new MyPanel());
+
+		setVisible(true);
+	}
+}

lab/lab10/Question6/MyPanel.java

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+import java.awt.Color;
+import java.awt.Graphics;
+import javax.swing.JPanel;
+
+public class MyPanel extends JPanel {
+	@Override
+	protected void paintComponent(Graphics g) {
+		// clean the panel
+		super.paintComponent(g);
+		// draw
+		g.setColor(Color.RED);
+		g.drawString("hello", (int) Math.round(Math.random() * this.getWidth()),
+				(int) Math.round(Math.random() * this.getHeight()));
+	}
+}

lab/lab10/Question6/Start.java

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+/**
+ * Answer to question.
+ *
+ */
+public class Start {
+	public static void main(String[] args) {
+		// Dispather
+		javax.swing.SwingUtilities.invokeLater(new Runnable() {
+			@Override
+			public void run() {
+				new MyFrame();
+			}
+		});
+	}
+}