Most visited

Recently visited

Results for

Summary: Ctors | Methods | Inherited Methods

CRC32

public class CRC32
extends Object implements Checksum

java.lang.Object
↳	java.util.zip.CRC32

A class that can be used to compute the CRC-32 of a data stream.

Passing a null argument to a method in this class will cause a NullPointerException to be thrown.

See also:

Checksum

Summary

Public constructors
`CRC32()` Creates a new CRC32 object.

Public methods
`long`	`getValue()` Returns CRC-32 value.
`void`	`reset()` Resets CRC-32 to initial value.
`void`	`update(byte[] b)` Updates the CRC-32 checksum with the specified array of bytes.
`void`	`update(ByteBuffer buffer)` Updates the checksum with the bytes from the specified buffer.
`void`	`update(byte[] b, int off, int len)` Updates the CRC-32 checksum with the specified array of bytes.
`void`	`update(int b)` Updates the CRC-32 checksum with the specified byte (the low eight bits of the argument b).

Inherited methods

From class


        
          java.lang.Object

`Object`	`clone()` Creates and returns a copy of this object.
`boolean`	`equals(Object obj)` Indicates whether some other object is "equal to" this one.
`void`	`finalize()` Called by the garbage collector on an object when garbage collection determines that there are no more references to the object.
`final Class<?>`	`getClass()` Returns the runtime class of this `Object`.
`int`	`hashCode()` Returns a hash code value for the object.
`final void`	`notify()` Wakes up a single thread that is waiting on this object's monitor.
`final void`	`notifyAll()` Wakes up all threads that are waiting on this object's monitor.
`String`	`toString()` Returns a string representation of the object.
`final void`	`wait(long timeout, int nanos)` Causes the current thread to wait until another thread invokes the `notify()` method or the `notifyAll()` method for this object, or some other thread interrupts the current thread, or a certain amount of real time has elapsed.
`final void`	`wait(long timeout)` Causes the current thread to wait until either another thread invokes the `notify()` method or the `notifyAll()` method for this object, or a specified amount of time has elapsed.
`final void`	`wait()` Causes the current thread to wait until another thread invokes the `notify()` method or the `notifyAll()` method for this object.

From interface


        
          java.util.zip.Checksum

`abstract long`	`getValue()` Returns the current checksum value.
`abstract void`	`reset()` Resets the checksum to its initial value.
`abstract void`	`update(byte[] b, int off, int len)` Updates the current checksum with the specified array of bytes.
`abstract void`	`update(int b)` Updates the current checksum with the specified byte.

Public constructors

CRC32

public CRC32 ()

Creates a new CRC32 object.

Public methods

getValue

public long getValue ()

Returns CRC-32 value.

Returns
`long`	the current checksum value

reset

public void reset ()

Resets CRC-32 to initial value.

update

public void update (byte[] b)

Updates the CRC-32 checksum with the specified array of bytes.

Parameters
`b`	`byte`: the array of bytes to update the checksum with

update

public void update (ByteBuffer buffer)

Updates the checksum with the bytes from the specified buffer. The checksum is updated using buffer.remaining() bytes starting at buffer.position() Upon return, the buffer's position will be updated to its limit; its limit will not have been changed.

Parameters
`buffer`	`ByteBuffer`: the ByteBuffer to update the checksum with

update

public void update (byte[] b, 
                int off, 
                int len)

Updates the CRC-32 checksum with the specified array of bytes.

Parameters
`b`	`byte`: the byte array to update the checksum with
`off`	`int`: the start offset of the data
`len`	`int`: the number of bytes to use for the update

Throws
`ArrayIndexOutOfBoundsException`	if `off` is negative, or `len` is negative, or `off+len` is greater than the length of the array `b`

update

public void update (int b)

Updates the CRC-32 checksum with the specified byte (the low eight bits of the argument b).

Parameters
`b`	`int`: the byte to update the checksum with

Interfaces

Classes

Exceptions

Errors

Most visited

Recently visited

Results for

CRC32

Summary

Public constructors

Public methods

Inherited methods

Public constructors

CRC32

Public methods

getValue

reset

update

update

update

update