package enumlation;  
  
public enum TypeEnum {  
  
    type1, type2, type3;  
      
    public static boolean contains(String type){  
        for(TypeEnum typeEnum : TypeEnum.values()){  
            if(typeEnum.name().equals(type)){  
                return true;  
            }  
        }  
        return false;  
    }  
      
    public static void main(String[] args){  
        String type = "type";  
        TypeEnum typeEnum;  
        if(!TypeEnum.contains(type)){  
            typeEnum = TypeEnum.type1;  
        }  
        else{  
            typeEnum = TypeEnum.valueOf(type);  
        }  
        switch (typeEnum) {  
        case type1:  
            System.out.println("do type1");  
            break;  
        case type2:  
            System.out.println("do type2");  
            break;  
        case type3:  
            System.out.println("do type3");  
            break;  
  
        default:  
            break;  
        }  
    }  
}