java学习后，复习，写计算器代码（第四阶段）

 

 

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package Java20131231computer;

import java.util.Scanner;

public class Computer4 {

 public static void main(String[] args) {
  
  double numberA,numberB;
  int k = 1; 
  
  Scanner oper = new Scanner(System.in);
  
  while( k != 0 ){   
   System.out.println(" 说明： 下面输入两个数字。");
   numberA = oper.nextInt();
   numberB = oper.nextInt();
   
   System.out.println(" 说明： 下面输入 + - * / 可得到相应的计算");
   String str = oper.next();
   
   GetComputerWork getComputerWork = new GetComputerWork(numberA,numberB,str);
   getComputerWork.getCaculateWork(numberA, numberB, str);   
  
  }
  

 }

}

package Java20131231computer;

public class GetComputerWork {
 double numberA, numberB;
 String str;
 
 public GetComputerWork() {
  super();
  // TODO Auto-generated constructor stub
 }

 public GetComputerWork(double numberA, double numberB, String str) {
  super();
  this.numberA = numberA;
  this.numberB = numberB;
  this.str = str;
 }

 public int getCaculateWork(double numberA,double numberB,String oper){
   
   if(str.equals("+")){
    ICaculateFactory ICaculateFactory = new AddCaculateFactory(numberA, numberB);
    ICaculateFactory.getCaculate(numberA, numberB).Caculate(numberA, numberB);
    return 1;
    
   }
   else if(str.equals("-")){
    ICaculateFactory ICaculateFactory = new SubtractCaculateFactory(numberA, numberB);
    ICaculateFactory.getCaculate(numberA, numberB).Caculate(numberA, numberB);
    return 1;
   }
   else if(str.equals("*")){
    ICaculateFactory ICaculateFactory = new MultiplicateCaculateFactory(numberA, numberB);
    ICaculateFactory.getCaculate(numberA, numberB).Caculate(numberA, numberB);
    return 1;
   }
   else if(str.equals("/")){
    ICaculateFactory ICaculateFactory = new DivideCaculateFactory(numberA, numberB);
    ICaculateFactory.getCaculate(numberA, numberB).Caculate(numberA, numberB);
    return 1;
   }
   else {
    System.out.println(" 输入无效，操作停止！" );
    return 0;
   }  
 
  }
}

 

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