刚才制作了一个简易计算器，把if语句改成switch语句，合理吗？？

import java.util.*;
class C{
    public static void main(String[] args)
    {
        Scanner in = new Scanner(System.in);
        
        System.out.println("-----------------------");
        System.out.println("您好，您已经进入计算器：");
        System.out.println("-----------------------");
        System.out.println("请您输入第一个数：");
        int A = in.nextInt();
        
        System.out.println("请您输入符号：（1：+，2：-，3：*，4：/）");
        int B = in.nextInt();
        
        System.out.println("请输入下一个数：");
        int C =in.nextInt();
        System.out.println("您的计算结果是：");
        
        /*if(B==1){
            
            System.out.println("="+(A+C));
            }
        if(B==2){
               
            System.out.println("="+(A-C));
                }
            if(B==3){
                    
            System.out.println("="+(A*C));
                    }
         if(B==4){
              
          System.out.println("="+(A/C))    ;
              }
        
        
        }*/
        
        String D ="标记";
        
        switch (B){
            case 1:
            D = "+";
            System.out.println("="+(A+C));
            break;
            
            case 2:
            D = "-";
            System.out.println("="+(A-C));
            break;
            
            case 3:
            D = "*";
            System.out.println("="+(A*C));
            break;
            
            case 4:
            D = "/";
            System.out.println("="+(A/C));
            break;
            
            
            
            
            
            }




}

}