获取数值型数组的平均值(分别使用增强for循环和普通for循环)

Posted 2021-02-17 summerdata

package com.Summer_0419.cn;

/**
 * @author Summer
 * 获取数值型数组的平均值
 */
public class Test_Method14 {
    
    public static void main(String[] args) {
        double[] a = { 100, 12, 102, 180, 13, 15.12 };// 静态方法声明一个变量
        a.toString();//toString方法进行遍历
        double b = avg(a);
        System.out.println("这是增强for循环返回的平均值"+b);
        double c = avg1(a);
        System.out.println("这是普通for循环返回的平均值"+c);

    }

    private static double avg1(double[] array) {
        double sum = 0;
        for (int i = 0; i < array.length; i++) {
            sum+=array[i];
        }
        return sum/array.length;
        
    }

    private static double avg(double[] a) {
        double sum = 0;
        for (double d : a) {
            sum+=d;
        }
        return sum/a.length;
        
    }

}