Chapter 03 codes updated.

Author: liuyubobobo

03-Probability-Simulation/02-More-about-the-Money-Experiment/src/AlgoFrame.java

@@ -40,7 +40,7 @@ public AlgoFrame(String title){
     public int getCanvasHeight(){return canvasHeight;}
 
     // data
-    int[] money;
+    private int[] money;
     public void render(int[] money){
         this.money = money;
         repaint();

03-Probability-Simulation/03-Get-PI-with-Monte-Carlo/src/AlgoFrame.java

@@ -33,8 +33,8 @@ public AlgoFrame(String title){
     public int getCanvasHeight(){return canvasHeight;}
 
     // data
-    Circle circle;
-    LinkedList<Point> points;
+    private Circle circle;
+    private LinkedList<Point> points;
     public void render(Circle circle, LinkedList<Point> points){
         this.circle = circle;
         this.points = points;

03-Probability-Simulation/03-Get-PI-with-Monte-Carlo/src/Circle.java

@@ -1,5 +1,4 @@
 import java.awt.*;
-import javax.swing.*;
 
 public class Circle {
 
@@ -16,6 +15,6 @@ public Circle(int x, int y, int r){
     public int getR(){ return r; }
 
     public boolean contain(Point p){
-        return Math.pow(p.getX() - x, 2) + Math.pow(p.getY() - y, 2) <= r*r;
+        return Math.pow(p.x - x, 2) + Math.pow(p.y - y, 2) <= r*r;
     }
 }

03-Probability-Simulation/04-Create-Data-Model/src/AlgoFrame.java

@@ -33,7 +33,7 @@ public AlgoFrame(String title){
     public int getCanvasHeight(){return canvasHeight;}
 
     // data
-    MonteCarloPiData data;
+    private MonteCarloPiData data;
     public void render(MonteCarloPiData data){
         this.data = data;
         repaint();

03-Probability-Simulation/04-Create-Data-Model/src/Circle.java

@@ -16,6 +16,6 @@ public Circle(int x, int y, int r){
     public int getR(){ return r; }
 
     public boolean contain(Point p){
-        return Math.pow(p.getX() - x, 2) + Math.pow(p.getY() - y, 2) <= r*r;
+        return Math.pow(p.x - x, 2) + Math.pow(p.y - y, 2) <= r*r;
     }
 }

03-Probability-Simulation/05-Pi-Estimation-Without-Rendering/src/Circle.java

@@ -16,6 +16,6 @@ public Circle(int x, int y, int r){
     public int getR(){ return r; }
 
     public boolean contain(Point p){
-        return Math.pow(p.getX() - x, 2) + Math.pow(p.getY() - y, 2) <= r*r;
+        return Math.pow(p.x - x, 2) + Math.pow(p.y - y, 2) <= r*r;
     }
 }