Java陣列的應用2:陣列的最大,最小,求和,平均值,倒置
阿新 • • 發佈:2019-02-10
import java.util.Scanner; public class HelloWorld { public static void main(String[] args){ // Scanner s = new Scanner(System.in); // System.out.println("請輸入一個數字"); // int num = s.nextInt(); Scanner s = new Scanner(System.in); int sum = 0 ; //存放陣列的和 int []a = new int[6] ; for(int i = 0 ; i < a.length ; i++){ System.out.println("請輸入陣列的第"+(i+1)) ; a[i] = s.nextInt(); sum += a[i]; } //求最大值和最小值 int max = a[0] , min = a[0]; for(int i = 1 ;i < a.length ; i++){ if(max < a[i]) max = a[i]; if(min > a[i]) min = a[i]; } //求陣列的平均值 int avg = sum / a.length ; for(int i = 0 ; i < a.length ; i++){ System.out.println(a[i]) ; } System.out.println("最大值:"+max+"最小值"+min+"平均值"+avg); //實現陣列倒置 for(int i = 0 ; i <= a.length / 2 - 1; i++){ int t = a[i]; a[i] = a[a.length - i - 1] ; a[a.length-i-1] = t; } for(int i = 0 ; i < a.length ; i++){ System.out.println(a[i]) ; } } }