What is ByteBuffer and CharBuffer in Java?

ByteBuffer and CharBuffer are classes in Java that belong to the java.nio package, which provides a set of classes for non-blocking I/O operations.

ByteBuffer is a buffer for handling byte data, allowing you to read and write binary data in an efficient manner. It provides various methods to allocate, read, and write bytes, as well as to convert between different data types.

CharBuffer, on the other hand, is specifically designed for handling character data. It provides a way to work with Unicode characters, making it easier to manipulate string data.

Example Usage

// Example of ByteBuffer usage ByteBuffer byteBuffer = ByteBuffer.allocate(10); byteBuffer.put((byte) 1); byteBuffer.put((byte) 2); byteBuffer.flip(); System.out.println("ByteBuffer content: " + byteBuffer.get()); // Example of CharBuffer usage CharBuffer charBuffer = CharBuffer.allocate(10); charBuffer.put('H'); charBuffer.put('e'); charBuffer.flip(); System.out.println("CharBuffer content: " + charBuffer.get());

ByteBuffer CharBuffer Java java.nio I/O operations character manipulation

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