ByteBuffer allocate() method in Java with Examples
The allocate() method of java.nio.ByteBuffer class is used to allocate a new byte buffer.
The new buffer’s position will be zero, its limit will be its capacity, its mark will be undefined, and each of its elements will be initialized to zero. It will have a backing array, and its array offset will be zero.
Attention reader! Don’t stop learning now. Get hold of all the important Java Foundation and Collections concepts with the Fundamentals of Java and Java Collections Course at a student-friendly price and become industry ready. To complete your preparation from learning a language to DS Algo and many more, please refer Complete Interview Preparation Course.
public static ByteBuffer allocate(int capacity)
Parameters: This method takes capacity, in bytes as parameter.
Return Value: This method returns the new byte buffer .
Throws: This method throws IllegalArgumentException, If the capacity is a negative integer
Below are the examples to illustrate the allocate() method:
Original ByteBuffer: [20, 30, 40, 50]
Trying to allocate negative value in ByteBuffer Exception thrown : java.lang.IllegalArgumentException