Program
import java.util.Arrays;
public class ArrayHashCode
{
public static void main(String[] args)
{
int[] iva = new int[] { 3, 5 };
int ret = iva.hashCode();
System.out.println("The hash code of value1 is: " + ret);
iva= new int[] { 19, 75 };
ret = iva.hashCode();
System.out.println("The hash code of value2 is: " + ret);
}
}Output
The hash code of value1 is: 123961122 The hash code of value2 is: 942731712
Description
public static int hashCode(int[] a)
Returns a hash code based on the contents of the specified array. For any two non-null int arrays a and b such that Arrays.equals(a, b), it is also the case that Arrays.hashCode(a) == Arrays.hashCode(b).
The value returned by this method is the same value that would be obtained by invoking the hashCode method on a List containing a sequence of Integer instances representing the elements of a in the same order. If a is null, this method returns 0.
Parameters:
a – the array whose hash value to compute
Returns:
a content-based hash code for a
