如何打印方法的返回值 [英] How to print a return value from a Method

问题描述

我正在研究一种随机数方法来从数组中选择一个随机元素.但是，我不知道如何打印 getRandom() 方法的返回值.这是代码.

I am working on a random number method to pick a random element from an array. However, I don't know how to print the return value from the getRandom() method. Here is the code.

import java.util.Random;

public class CardDeck {

    public static void main(String[] args) {

        System.out.println("Here is your random card.");

        int array[] = new int[13];  

        array[0] = 2;
        array[1] = 3;
        array[2] = 4;
        array[3] = 5;
        array[4] = 6;
        array[5] = 7;
        array[6] = 8;
        array[7] = 9;
        array[8] = 10;
        array[9] = 11;
        array[10] = 12;
        array[11] = 13;
        array[12] = 14;

    }

    public int getRandom(int[] array) {
        int cardNumber = new Random().nextInt(array.length);
        return array[cardNumber];
    }

}

推荐答案

直接打印返回值

System.out.println(getRandom(array));

或

int returnValue = getRandom(array);
System.out.println(returnValue);

这篇关于如何打印方法的返回值的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！