Java.util.Arrays.hashCode(char[]) Method

Description

The java.util.Arrays.hashCode(char[]) method returns a hash code based on the contents of the specified array. For any two char arrays a and b such that Arrays.equals(a, b), it is also the case that Arrays.hashCode(a) == Arrays.hashCode(b).

Declaration

Following is the declaration for java.util.Arrays.hashCode() method

public static int hashCode(char[] a)

Parameters

• a -- This is the array whose hash value to compute.

Return Value

This method returns a content-based hash code for a.

Exception

• NA

Example

The following example shows the usage of java.util.Arrays.hashCode() method.

package com.tutorialspoint;

import java.util.Arrays;

public class ArrayDemo {

  public static void main(String[] args) {
   
    // initializing char array
    char[] cval = new char[] { 'a', 'k' };

    // hashcode for value1
    int retval = cval.hashCode();
   
    // printing hash code value
    System.out.println("The hash code of value1 is: " + retval);
   
    // value2 for char array
    cval=new char[] { 'e', 'f', 'h' };
    
    // hashcode for value2
    retval=cval.hashCode();

    // printing hash code value
    System.out.println("The hash code of value2 is: " + retval);
  }
}

Let us compile and run the above program, this will produce the following result:

The hash code of value1 is: 4072869
The hash code of value2 is: 1671711