IntBuffer is a class from the java.nio package in Java that allows you to work efficiently with sequences of 32-bit signed integers. It is part of the NIO (New I/O) library and supports buffer-based data manipulation useful for I/O operations, communication protocols, and performance-critical applications.IntBuffer is abstract; you create an instance using static factory methods […]
ShortBuffer is part of the java.nio package and provides a buffer for manipulating 16-bit short integers. It is useful in low-level I/O tasks, such as binary data processing, communication protocols, and memory-mapped files.ShortBuffer is an abstract class; instances are created using the allocate() or wrap() static methods. Commonly Used Methods Simple Program using ShortBuffer(Storing and
CharBuffer is part of the java.nio package and is a buffer for handling characters. It is useful for character-based input/output operations, such as text parsing, network communication, or file processing. It works similarly to ByteBuffer but specifically stores 16-bit char values. Commonly Used Methods Simple Program using CharBuffer Writing and Reading Characters Problem Statement: LotusJavaPrince
ByteBuffer is a concrete subclass of Buffer (from java.nio) that is used for handling byte data in a fast, efficient, and non-blocking way. It’s part of Java NIO (New I/O) and allows direct or indirect memory management. Commonly Used Methods Simple Program using ByteBuffer Problem Statement: LotusJavaPrince is building a chat application. Mahesh suggests using
Java introduced the New I/O (NIO) package (java.nio) to provide more efficient data handling, especially for large-scale, non-blocking input/output operations. Central to this NIO architecture is the Buffer class and its subclasses, which are used for storing and manipulating data in memory. 1. The Root Class – java.nio.Buffer At the top of the hierarchy is
Buffer classes Heirarchy Read More »
The Buffer class is an abstract class in the java.nio package, serving as the foundation for all buffer classes like ByteBuffer, CharBuffer, IntBuffer, etc. A buffer is a container for a fixed amount of data of a specific primitive type. Commonly Used Methods Simple Program using ByteBuffer This program demonstrates basic usage of a buffer
The Console class in Java (available in the java.io package) provides methods to access the character-based console device — typically, the text terminal from which the user runs the program. It’s useful for reading input and writing output in a secure and interactive way, especially for password input where echoing is disabled. The Console class
FileWriter is a character stream class used to write character data (text) to a file. It is part of the java.io package and is used for writing text files. Commonly Used Constructors and Methods Simple Program Mahesh wants to write a greeting message to a file named greeting.txt using FileWriter. Content of greeting.txt after execution:
FileReader is a character-based class in the java.io package used to read data from files as characters (not bytes). It is mainly used for reading text files. Commonly Used Constructors and Methods Simple Program Mahesh has a file data.txt that contains a simple message. He wants to read the contents and display them on the
