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ByteBuffer asLongBuffer() method in Java with Examples

Last Updated : 6 Jun, 2021

The asLongBuffer() method of java.nio.ByteBuffer class is used to create a view of this byte buffer as a long buffer.
The content of the new buffer will start at this buffer's current position. Changes to this buffer's content will be visible in the new buffer, and vice versa; the two buffers' position, limit, and mark values will be independent.
The new buffer's position will be zero, its capacity and its limit will be the number of bytes remaining in this buffer divided by eight, and its mark will be undefined. The new buffer will be direct if, and only if, this buffer is direct, and it will be read-only if, and only if, this buffer is read-only.
Syntax: 
 

public abstract LongBuffer asLongBuffer()


Return Value: This method returns a new long buffer.
Below are the examples to illustrate the asLongBuffer() method:
Examples 1: 
 


Output: 
LongBuffer : 1000000 2000000 3000000 3000000

 

Examples 2: 
 


Output: 
LongBuffer : 1000000 2000000 3000000 

Trying to put the value in read only LongBuffer
Exception thrown : java.nio.ReadOnlyBufferException

 
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