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
| Sr.No. |
Constructor & Description |
| 1 |
InputStream()
Single Constructor |
Class methods
| Sr.No. |
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 −
