构造方法

构造方法

public area(int a,intb){

A=a;

B=b;

}

 

area a=new area(5,6);

syso(" ssdad"+a.area());

 

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package DemoArea2.copy;   import org.omg.PortableServer.POAPackage.ServantAlreadyActive;   public class area2 {     private int A;     private int B;     private String Color;           public area2(int a,int b){         A=a;         B=b;     }           int setarea(){         return A*B;     }       }

　　

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package DemoArea2.copy;   public class Mainarea2 {       public static void main(String[] args) {         // TODO Auto-generated method stub           area2 a2=new area2(3, 5);                                                 System.out.println("面积是"+a2.setarea());       }   }