package array; import java.util.Arrays; public class ArrayDemo05 { public static void main(String[] args) { int[] a = {1,2,3,3423,232}; System.out.println(a);//[I@29453f44 //打印数组元素Arrays.toString //System.out.println(Arrays.toString(a)); // printArray(a); Arrays.sort(a);//数组进行排序:升序 System.out.println(Arrays.toString(a)); Arrays.fill(a, 0);//数组填充 System.out.println(Arrays.toString(a)); } public static void printArray(int[] a){ for (int i = 0; i < a.length; i++) { if (i == 0) { System.out.print("["); }if(i==a.length-1){ System.out.print(a[i]+"]"); }else System.out.print(a[i]+", "); } } }