对教组对象的操作(Arrays) import java.util.Arrays; public class ArrayDemo1 public static void main(String args[]) int[]a1 new int[10] int[]a2 new int[10]; Arrays.fill(a1,47); Arrays.fill(a2,47); System.out.printIn(Arrays.equals(a1,a2); a2[3]=11;a2[2]=9; System.out.println(Arrays.equals(a1,a2)); Arrays.sort(a2); System.out.println(Arrays.binarySearch(a2,11)); 44 对数组对象的操作(Arrays) import java.util.Arrays; public class ArrayDemo1 { public static void main(String args[]) { int[] a1 = new int[10]; int[] a2 = new int[10]; Arrays.fill(a1, 47); Arrays.fill(a2, 47); System.out.println(Arrays.equals(a1, a2)); a2[3]=11; a2[2]=9; System.out.println(Arrays.equals(a1, a2)); Arrays.sort(a2); System.out.println(Arrays.binarySearch(a2, 11)); } }