From eac3b3bfe320cceeb58f6248d694a27baeba7ecd Mon Sep 17 00:00:00 2001
From: dengxitong <2452879460@qq.com>
Date: Wed, 8 Apr 2026 20:21:10 +0800
Subject: [PATCH] =?UTF-8?q?=E6=B7=BB=E5=8A=A0=20'w5/shape.java'?=
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---
 w5/shape.java | 29 +++++++++++++++++++++++++++++
 1 file changed, 29 insertions(+)
 create mode 100644 w5/shape.java

diff --git a/w5/shape.java b/w5/shape.java
new file mode 100644
index 0000000..9246763
--- /dev/null
+++ b/w5/shape.java
@@ -0,0 +1,29 @@
+class Shape {
+    public void draw() {}
+}
+
+class Circle extends Shape {
+    public void draw() {
+        System.out.println("Drawing a circle");
+    }
+}
+
+class Rectangle extends Shape {
+    public void draw() {
+        System.out.println("Drawing a rectangle");
+    }
+}
+
+class ShapeTest {
+    public static void drawShape(Shape shape) {
+        shape.draw();
+    }
+    
+    public static void main(String[] args) {
+        Circle circle = new Circle();
+        Rectangle rectangle = new Rectangle();
+        
+        drawShape(circle);
+        drawShape(rectangle);
+    }
+}
\ No newline at end of file