com.JLex
Class JavaLexBitSet

java.lang.Object
  com.JLex.JavaLexBitSet

All Implemented Interfaces:

java.lang.Cloneable

final class JavaLexBitSet
extends java.lang.Object
implements java.lang.Cloneable

A set of bits. The set automatically grows as more bits are needed.

Author:

Arthur van Hoff, revised by Elliot Joel Berk

Field Summary

(package private) long[]	bits
(package private) static int	BITS
(package private) static int	MASK

Constructor Summary

JavaLexBitSet()
Creates an empty set.

JavaLexBitSet(int nbits)
Creates an empty set with the specified size.

Method Summary

void	and(JavaLexBitSet set) Logically ANDs this bit set with the specified set of bits.
void	clear(int bit) Clears a bit.
java.lang.Object	clone() Clones the JavaLexBitSet.
boolean	equals(java.lang.Object obj) Compares this object against the specified object.
boolean	get(int bit) Gets a bit.
int	hashCode() Gets the hashcode.
private int	nbits2size(int nbits)
void	or(JavaLexBitSet set) Logically ORs this bit set with the specified set of bits.
private void	resize(int nbits)
void	set(int bit) Sets a bit.
int	size() Calculates and returns the set's size
java.lang.String	toString() Converts the JavaLexBitSet to a String.
void	xor(JavaLexBitSet set) Logically XORs this bit set with the specified set of bits.

Methods inherited from class java.lang.Object

finalize, getClass, notify, notifyAll, wait, wait, wait

Field Detail

BITS

static final int BITS

See Also:

Constant Field Values

MASK

static final int MASK

See Also:

Constant Field Values

bits

long[] bits

Constructor Detail

JavaLexBitSet

public JavaLexBitSet()

Creates an empty set.

JavaLexBitSet

public JavaLexBitSet(int nbits)

Creates an empty set with the specified size.

Parameters:

nbits - the size of the set

Method Detail

nbits2size

private int nbits2size(int nbits)

resize

private void resize(int nbits)

set

public void set(int bit)

Sets a bit.

Parameters:

bit - the bit to be set

clear

public void clear(int bit)

Clears a bit.

Parameters:

bit - the bit to be cleared

get

public boolean get(int bit)

Gets a bit.

Parameters:

bit - the bit to be gotten

and

public void and(JavaLexBitSet set)

Logically ANDs this bit set with the specified set of bits.

Parameters:

set - the bit set to be ANDed with

or

public void or(JavaLexBitSet set)

Logically ORs this bit set with the specified set of bits.

Parameters:

set - the bit set to be ORed with

xor

public void xor(JavaLexBitSet set)

Logically XORs this bit set with the specified set of bits.

Parameters:

set - the bit set to be XORed with

hashCode

public int hashCode()

Gets the hashcode.

Overrides:

hashCode in class java.lang.Object

size

public int size()

Calculates and returns the set's size

equals

public boolean equals(java.lang.Object obj)

Compares this object against the specified object.

Overrides:

equals in class java.lang.Object

Parameters:

obj - the object to compare with

Returns:

true if the objects are the same; false otherwise.

clone

public java.lang.Object clone()

Clones the JavaLexBitSet.

Overrides:

clone in class java.lang.Object

toString

public java.lang.String toString()

Converts the JavaLexBitSet to a String.

Overrides:

toString in class java.lang.Object