java.util.Arrays类的 hashCode(int [])方法基于指定数组的内容返回哈希码。对于任意两个非空int数组a和b,例如Arrays.equals(a,b),Arrays.hashCode(a)== Arrays.hashCode(b)也是这种情况。
import java.util.Arrays; public class ArrayDemo { public static void main(String[] args) { int[] ival = new int[] { 3, 5 }; int retval = ival.hashCode(); System.out.println("The hash code of value1 is: " + retval); ival = new int[] { 19, 75 }; retval = ival.hashCode(); System.out.println("The hash code of value2 is: " + retval); } }
输出结果
The hash code of value1 is: 4072869 The hash code of value2 is: 1671711