ByteBuffer hashCode() method in Java with Examples

The hashCode() method of java.nio.ByteBuffer class is used to return the current hash code of this buffer. The hash code of a byte buffer depends only upon its remaining elements; that is, upon the elements from position() up to, and including, the element at limit() - 1. Because buffer hash codes are content-dependent, it is inadvisable to use buffers as keys in hash maps or similar data structures unless it is known that their contents will not change. 

Syntax:

public int hashCode()

Return Value: This method returns the current hash code of this buffer. Below are the examples to illustrate the hashCode() method: Examples 1: 

Original ByteBuffer: 
10 20 30 

Byte Value: -219122491

Examples 2: 

Byte Value: -293403007

Reference: https://docs.oracle.com/javase/9/docs/api/java/nio/ByteBuffer.html#hashCode--