Chapter 02 section 03 updated.

Author: liuyubobobo

02-Java-Swing-Basics/03-Rendering-Basics/src/AlgoFrame.java

@@ -15,7 +15,7 @@ public AlgoFrame(String title, int canvasWidth, int canvasHeight){
 
         //setSize(canvasWidth, canvasHeight);
         AlgoCanvas canvas = new AlgoCanvas();
-        //canvas.setPreferredSize(new Dimension(canvasWidth,canvasHeight));
+        // canvas.setPreferredSize(new Dimension(canvasWidth,canvasHeight));
         setContentPane(canvas);
         pack();
 
@@ -24,7 +24,7 @@ public AlgoFrame(String title, int canvasWidth, int canvasHeight){
 
         setVisible(true);
 
-        System.out.println(getContentPane().getBounds());
+        // System.out.println(getContentPane().getBounds());
     }
 
     public AlgoFrame(String title){
@@ -43,7 +43,6 @@ public void paintComponent(Graphics g) {
             super.paintComponent(g);
 
             g.drawOval(50, 50, 300, 300);
-            //g.drawOval(0, 0, 800, 800);
         }
 
         @Override

02-Java-Swing-Basics/03-Rendering-Basics/src/Main.java

@@ -6,7 +6,7 @@ public class Main {
     public static void main(String[] args) {
 
         EventQueue.invokeLater(() -> {
-            AlgoFrame frame = new AlgoFrame("Welcome",800,800);
+            AlgoFrame frame = new AlgoFrame("Welcome",500,500);
         });
     }
 }