package com.sTudent;import java.util.Arrays;public class stuDent {? public static void main(String[] args) { stuDent hello=new stuDent(); hello.Dges();}? public int Dges(){ ?int[] ages={18,23,21,19,25,29,17}; ?Arrays.sort(ages); ?int max=ages[0]; ?int min=ages[0]; ?for(int i=0;i<ages.length;i++){ ?if(ages[i]>max){max=ages[i];} ?else if(ages[i]<min){min=ages[i];} ?} ?System.out.println("年齡按從小到大排序后為："+Arrays.toString(ages)); ?System.out.println("最大的年齡為："+max); ?System.out.println("最小的年齡為："+min); ?return min;? }}