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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