[Ch14] First updates to SimpleAnimation (8c0b8117) · Commits · examples / Head First Java 3rd Edition

src/main/java/ch14/MyDrawPanel.java

+10 −2

Changes for src/main/java/ch14/MyDrawPanel.java: 10 added lines, 2 removed lines.
Original line number	Diff line number	Diff line
		@@ -2,13 +2,21 @@ package ch14;

		import javax.swing.*;
		import java.awt.*;
		import java.util.Random;

		class MyDrawPanel extends JPanel {

		public void paintComponent(Graphics g) {
		g.setColor(Color.orange);
		g.fillRect(0, 0, this.getWidth(), this.getHeight());

		g.fillRect(20, 50, 100, 100);
		Random random = new Random();
		int red = random.nextInt(256);
		int green = random.nextInt(256);
		int blue = random.nextInt(256);

		Color randomColor = new Color(red, green, blue);
		g.setColor(randomColor);
		g.fillOval(70, 70, 100, 100);
		}

		public static void main(String[] args) {

+8 −8

Changes for src/main/java/ch14/SimpleAnimation.java: 8 added lines, 8 removed lines.
Original line number	Diff line number	Diff line
		package ch14;

		import javax.swing.*;
		import java.awt.Color;
		import java.awt.Graphics;
		import java.awt.*;
		import java.util.concurrent.TimeUnit;

		public class SimpleAnimation {
		private int x = 70;
		private int y = 70;
		private int xPos = 70;
		private int yPos = 70;

		public static void main(String[] args) {
		SimpleAnimation gui = new SimpleAnimation();
		@@ -24,13 +24,13 @@ public class SimpleAnimation {
		frame.setVisible(true);

		for (int i = 0; i < 130; i++) {
		x++;
		y++;
		xPos++;
		yPos++;

		drawPanel.repaint();

		try {
		Thread.sleep(50);
		TimeUnit.MILLISECONDS.sleep(50);
		} catch (Exception e) {
		e.printStackTrace();
		}
		@@ -40,7 +40,7 @@ public class SimpleAnimation {
		class MyDrawPanel extends JPanel {
		public void paintComponent(Graphics g) {
		g.setColor(Color.green);
		g.fillOval(x, y, 40, 40);
		g.fillOval(xPos, yPos, 40, 40);
		}
		}
		}
		No newline at end of file

+1 −1

Changes for src/main/java/ch14/TwoButtons.java: 1 added line, 1 removed line.
Original line number	Diff line number	Diff line
		@@ -23,7 +23,7 @@ public class TwoButtons {
		colorButton.addActionListener(event -> frame.repaint());

		label = new JLabel("I’m a label");
		RandomColorPanel drawPanel = new RandomColorPanel();
		MyDrawPanel drawPanel = new MyDrawPanel();

		frame.getContentPane().add(BorderLayout.SOUTH, colorButton);
		frame.getContentPane().add(BorderLayout.CENTER, drawPanel);