Java.io.InputStream Class

Introduction

The Java.io.InputStream class is the superclass of all classes representing an input stream of bytes. Applications that need to define a subclass of InputStream must always provide a method that returns the next byte of input.

Class declaration

Following is the declaration for Java.io.InputStream class:

public abstract class InputStream
   extends Object
      implements Closeable

Class constructors

S.N.	Constructor & Description
1	InputStream() Single Constructor

Class methods

S.N.	Method & Description
1	int available() This method returns an estimate of the number of bytes that can be read (or skipped over) from this input stream without blocking by the next invocation of a method for this input stream.
2	void close() This method closes this input stream and releases any system resources associated with the stream.
3	void mark(int readlimit) This method marks the current position in this input stream.
4	boolean markSupported() This method tests if this input stream supports the mark and reset methods.
5	abstract int read() This method reads the next byte of data from the input stream.
6	int read(byte[] b) This method reads some number of bytes from the input stream and stores them into the buffer array b.
7	int read(byte[] b, int off, int len) < This method reads up to len bytes of data from the input stream into an array of bytes.
8	void reset() This method repositions this stream to the position at the time the mark method was last called on this input stream.
9	long skip(long n) This method skips over and discards n bytes of data from this input stream.

Methods inherited

This class inherits methods from the following classes:

• Java.io.Object