Checksum

java.util.zip

Interface Checksum

All Known Implementing Classes:

Adler32, CRC32
```
public interface Checksum
```
An interface representing a data checksum.

Method Summary

All Methods

Instance Methods

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

- Method Detail
  - update
```
void update(int b)
```
    Updates the current checksum with the specified byte.
    
    Parameters:
    
    b - the byte to update the checksum with
  - update
```
void update(byte[] b,
            int off,
            int len)
```
    Updates the current checksum with the specified array of bytes.
    
    Parameters:
    
    b - the byte array to update the checksum with
    
    off - the start offset of the data
    
    len - the number of bytes to use for the update
  - getValue
```
long getValue()
```
    Returns the current checksum value.
    
    Returns:
    
    the current checksum value
  - reset
```
void reset()
```
    Resets the checksum to its initial value.