From 2db76ce98e017b9445cddf32333f020ce358c445 Mon Sep 17 00:00:00 2001
From: Thea Wang <thea@TheadeMacBook-Air.local>
Date: Mon, 13 Apr 2026 11:34:55 +0800
Subject: [PATCH] =?UTF-8?q?=E5=AE=8C=E6=88=90W5=E4=BD=9C=E4=B8=9A?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

---
 Circle.class    | Bin 0 -> 978 bytes
 Circle.java     |  17 +++++++++++++++++
 Main.class      | Bin 0 -> 761 bytes
 Main.java       |  19 +++++++++++++++++++
 Rectangle.class | Bin 0 -> 1007 bytes
 Rectangle.java  |  19 +++++++++++++++++++
 Shape.class     | Bin 0 -> 223 bytes
 Shape.java      |   4 ++++
 ShapeUtil.class | Bin 0 -> 955 bytes
 ShapeUtil.java  |   9 +++++++++
 Triangle.class  | Bin 0 -> 1015 bytes
 Triangle.java   |  19 +++++++++++++++++++
 12 files changed, 87 insertions(+)
 create mode 100644 Circle.class
 create mode 100644 Circle.java
 create mode 100644 Main.class
 create mode 100644 Main.java
 create mode 100644 Rectangle.class
 create mode 100644 Rectangle.java
 create mode 100644 Shape.class
 create mode 100644 Shape.java
 create mode 100644 ShapeUtil.class
 create mode 100644 ShapeUtil.java
 create mode 100644 Triangle.class
 create mode 100644 Triangle.java

diff --git a/Circle.class b/Circle.class
new file mode 100644
index 0000000000000000000000000000000000000000..14f10cc42def52f1bb75a0e4c35a85703e6c35eb
GIT binary patch
literal 978
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L+`G7shuHW7r!MH&

literal 0
HcmV?d00001

diff --git a/Circle.java b/Circle.java
new file mode 100644
index 0000000..f47b982
--- /dev/null
+++ b/Circle.java
@@ -0,0 +1,17 @@
+public class Circle extends Shape {
+    private double radius;
+    
+    public Circle(double radius) {
+        this.radius = radius;
+    }
+    
+    @Override
+    public double getArea() {
+        return Math.PI * radius * radius;
+    }
+    
+    @Override
+    public void draw() {
+        System.out.println("Drawing a circle with radius " + radius);
+    }
+}
diff --git a/Main.class b/Main.class
new file mode 100644
index 0000000000000000000000000000000000000000..e4658e21b643b0e7d455250bbf3a58d54b6732e6
GIT binary patch
literal 761
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literal 0
HcmV?d00001

diff --git a/Main.java b/Main.java
new file mode 100644
index 0000000..ee47404
--- /dev/null
+++ b/Main.java
@@ -0,0 +1,19 @@
+public class Main {
+    public static void main(String[] args) {
+        Shape circle = new Circle(5);
+        Shape rectangle = new Rectangle(4, 6);
+        Shape triangle = new Triangle(3, 8);
+        
+        System.out.println("Circle:");
+        ShapeUtil.printArea(circle);
+        ShapeUtil.drawShape(circle);
+        
+        System.out.println("Rectangle:");
+        ShapeUtil.printArea(rectangle);
+        ShapeUtil.drawShape(rectangle);
+        
+        System.out.println("Triangle:");
+        ShapeUtil.printArea(triangle);
+        ShapeUtil.drawShape(triangle);
+    }
+}
diff --git a/Rectangle.class b/Rectangle.class
new file mode 100644
index 0000000000000000000000000000000000000000..0a39ed7e697e90a7213387c76429d3925c106696
GIT binary patch
literal 1007
zcmaJ=+fEZv6kVsK9XbvaDHrjA1A??wD2kVd8WU|Ln&2gt;Db-6?MXXyI@8RYLiiK^
z!e~Gf9{d15%DAS(r3PXqv(IhqwfA0UpWlCue*t)frzR3e8W^#VLRuhIYs;PzNI!Et
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literal 0
HcmV?d00001

diff --git a/Rectangle.java b/Rectangle.java
new file mode 100644
index 0000000..31137e6
--- /dev/null
+++ b/Rectangle.java
@@ -0,0 +1,19 @@
+public class Rectangle extends Shape {
+    private double width;
+    private double height;
+    
+    public Rectangle(double width, double height) {
+        this.width = width;
+        this.height = height;
+    }
+    
+    @Override
+    public double getArea() {
+        return width * height;
+    }
+    
+    @Override
+    public void draw() {
+        System.out.println("Drawing a rectangle with width " + width + " and height " + height);
+    }
+}
diff --git a/Shape.class b/Shape.class
new file mode 100644
index 0000000000000000000000000000000000000000..ea00333f26212f295f1da3a4c4f5ea755c0cf343
GIT binary patch
literal 223
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zzxM~g7M_g`Gz+=|117=C#9jEgC=&k|W-_V?<{~Z9dP&eG)3b#x!3ZwmCJFkwjG5eh
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eOw7jY1$wgJHAdBDtrPli0OkSLRCmbOf%^xNrX^Yc

literal 0
HcmV?d00001

diff --git a/Shape.java b/Shape.java
new file mode 100644
index 0000000..5cbc8c0
--- /dev/null
+++ b/Shape.java
@@ -0,0 +1,4 @@
+public abstract class Shape {
+    public abstract double getArea();
+    public abstract void draw();
+}
diff --git a/ShapeUtil.class b/ShapeUtil.class
new file mode 100644
index 0000000000000000000000000000000000000000..ad6ae4fba089125e43af18ae3450fcaac79a59d6
GIT binary patch
literal 955
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literal 0
HcmV?d00001

diff --git a/ShapeUtil.java b/ShapeUtil.java
new file mode 100644
index 0000000..5c68741
--- /dev/null
+++ b/ShapeUtil.java
@@ -0,0 +1,9 @@
+public class ShapeUtil {
+    public static void printArea(Shape shape) {
+        System.out.println("Area: " + shape.getArea());
+    }
+    
+    public static void drawShape(Shape s) {
+        s.draw();
+    }
+}
diff --git a/Triangle.class b/Triangle.class
new file mode 100644
index 0000000000000000000000000000000000000000..35460783eb0fdf4922dec39545f5a3931769cd45
GIT binary patch
literal 1015
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literal 0
HcmV?d00001

diff --git a/Triangle.java b/Triangle.java
new file mode 100644
index 0000000..a17e1ab
--- /dev/null
+++ b/Triangle.java
@@ -0,0 +1,19 @@
+public class Triangle extends Shape {
+    private double base;
+    private double height;
+    
+    public Triangle(double base, double height) {
+        this.base = base;
+        this.height = height;
+    }
+    
+    @Override
+    public double getArea() {
+        return 0.5 * base * height;
+    }
+    
+    @Override
+    public void draw() {
+        System.out.println("Drawing a triangle with base " + base + " and height " + height);
+    }
+}