如何从枚举中选择随机值?

I want to learn how can i pick a string value from enum and run in for-each loop.Let me write the Assignment here; "Write a static method generateRandomZoo (n). The The method should have the parameter int n and the result should be an animal array of length n, the randomly chosen animal contains. Proceed as follows: First create one empty array of corresponding length. Loop through the array. Generate in a random value r for each run using the static method RandomTools.randomValue between 0 and Animal.values ​​(). length (exclusive). Assign this to the current array position Enumeration element with the corresponding ordinal number for (Animal.values ​​() [r]). You can assume that n is positive." What i ve done is as follows enter code here first of all enum class looks like; package main;

公共枚举动物{

ELEPHANT,LION, TIGER, WASP, SNAKE,MONKEY,  EMU;

}

主要的编码部分是这样

公共静态void main(String [] args){

    Animal[] zoo = generateRandomZoo(100);
    }

私人静态Animal [] generateRandomZoo(){         // TODO自动生成的方法存根

    Animal [] animals= new Animal [100] ;
    for(Animal a : Animal.values()){
        System.out.println("Random Animals"+ "-" + a + "-" +(a.ordinal()+1));


        for (int i = 0; i<100 ; i++) {
            animal[i] = random animal
                    System.out.println(i);

    }

         private static   RandomTools.randomValue();

    }

你能告诉我我错了哪里以及如何纠正它吗?(通过我很漂亮的初学者的方式,请以我能理解的方式描述:))

评论