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  • 例题43

    class Lader{
     double above,bottom,height;
     Lader(){}
     Lader(double a,double b,double h){
      above=a;
      bottom=b;
      height=h;
     }
     public void setAbove(double a){
      above=a;
      above=a;
     }
     public void setBottom(double b){
      bottom=b; 
     }
     public void setHeight(double h){
      height=h;
     }
     double computeArea(){
      return(above+bottom)*height/2.0;
     }
    }
    public class Example4_1{
     public static void main (String args[]){
      double area1=0,area2=0;
      Lader laderOne,laderTwo;
      laderOne=new Lader();
      laderTwo=new Lader(10,88,20);
      laderOne.setAbove(16);
      laderOne.setBottom(26);
      laderOne.setHeight(100);
      laderTwo.setAbove(300);
      laderTwo.setBottom(500);
      area1=laderOne.computeArea();
      area2=laderTwo.computeArea();
      System.out.println("laderOne的above,bottom和height:"+
                          laderOne.above+","+laderOne.bottom+","+laderOne.height);
      System.out.println("laderOne的面积:"+area1);
      System.out.println("ladeTwo的above,bottom和height:"+
                          laderTwo.above+","+laderTwo.bottom+","+laderTwo.height);  
      System.out.println("laderTwo的面积:"+area2);  
     }
    }              
      
     

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  • 原文地址:https://www.cnblogs.com/wangmengran/p/2970067.html
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