java switch case 用于字符串的方法

 enum Animal {
     dog,cat,bear;
      public static Animal getAnimal(String animal){
        return valueOf(animal );
     }
 }

 public class Client {

    public void caseAnimal(String animal){
        switch(Animal.getAnimal(animal)){
        case cat:
            System.out.println("this is a cat");
            break;
        case dog:
            System.out.println("this is a dog");
            break;
        case bear:
            System.out.println("this is a bear");
            break;
        }
    }

   public static void main(String[] args) {
       Client client = new Client();
        client.caseAnimal("cat");
 }

 }

 

 public void switchCaseStr() {

   Map map=new HashMap();

   map.put("hello", 1);
   map.put("haha", 2);
   map.put("yes", 3);
   map.put("in", 4);


   String str="hello";

   switch(map.get(str))
   {
    case 3:
         System.out.println("yes");
        break;
    case 1:
         System.out.println("hello");
         break;
     case 2:
         System.out.println("haha");
        break;
     case 4:
        System.out.println("in");
        break;

    default:
     System.out.println("default");
   }
  }