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dichgrem
2025-11-15 13:30:17 +08:00
parent c20e8949a5
commit 41e6b71bd7
33 changed files with 549 additions and 543 deletions
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30
com/study/demo2/Rectangle_Main.java
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@@ -1,18 +1,18 @@
package com.study.demo2;
public class Main {
public static void main(String[] args) {
Rectangle rect1 = new Rectangle(5.0, 3.0);
System.out.println("面积:" + rect1.getArea());
System.out.println("周长:" + rect1.getPerimeter());
Rectangle rect2 = new Rectangle();
System.out.println("默认面积:" + rect2.getArea());
System.out.println("默认周长:" + rect2.getPerimeter());
rect2.setWidth(2.5);
rect2.setHeight(4.0);
System.out.println("修改后面积:" + rect2.getArea());
System.out.println("修改后周长:" + rect2.getPerimeter());
}
}
public static void main(String[] args) {
Rectangle rect1 = new Rectangle(5.0, 3.0);
System.out.println("面积:" + rect1.getArea());
System.out.println("周长:" + rect1.getPerimeter());
Rectangle rect2 = new Rectangle();
System.out.println("默认面积:" + rect2.getArea());
System.out.println("默认周长:" + rect2.getPerimeter());
rect2.setWidth(2.5);
rect2.setHeight(4.0);
System.out.println("修改后面积:" + rect2.getArea());
System.out.println("修改后周长:" + rect2.getPerimeter());
}
}