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有关java语言编程的问题,做绿色方框内的题目。 20
1个回答
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package com.shape;
public interface Shape {//图形接口
public void getGirth();
}
package com.shape;
/**
* 矩形
*/
public class Rectangle implements Shape{
public int a=3;
public int b=4;
//求矩形周长
@Override
public void getGirth(){
int C=(a+b)*2;
System.out.println("矩形周长是:"+C);
}
}
package com.shape;
/**
* 三角形
*/
public class Triangle implements Shape{
public int a=3;
public int b=4;
public int c=5;
//求三角形周长
@Override
public void getGirth(){
int C=a+b+c;
System.out.println("三角形周长是:"+C);
}
}
package com.shape;
public class Test {//测试类
public static void main(String[] args) {
Shape s1=new Triangle();
Shape s2=new Rectangle();
s1.getGirth();
s2.getGirth();
}
}
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