jmetal.encodings.variable
Class Binary

java.lang.Object
  jmetal.core.Variable
      jmetal.encodings.variable.Binary

All Implemented Interfaces:

java.io.Serializable

Direct Known Subclasses:

BinaryReal

public class Binary
extends Variable

This class implements a generic binary string encodings.variable.It can be used as a base class other binary string based classes (e.g., binary coded integer or real variables).

See Also:

Serialized Form

Field Summary

java.util.BitSet	bits_ Stores the bits constituting the binary string.
protected int	numberOfBits_ Store the length of the binary string

Constructor Summary

Binary()
Default constructor.

Binary(Binary variable)
Copy constructor.

Binary(int numberOfBits)
Constructor

Method Summary

void	decode() This method is intended to be used in subclass of Binary, for examples the classes, BinaryReal and BinaryInt.
Variable	deepCopy() Creates an exact copy of a Binary object
boolean	getIth(int bit) Returns the value of the ith bit.
int	getNumberOfBits() Returns the length of the binary string.
int	hammingDistance(Binary other) Obtain the hamming distance between two binary strings
void	setIth(int bit, boolean value) Sets the value of the ith bit.
java.lang.String	toString()

Methods inherited from class jmetal.core.Variable

getLowerBound, getUpperBound, getValue, getVariableType, setLowerBound, setUpperBound, setValue

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

Field Detail

bits_

public java.util.BitSet bits_

Stores the bits constituting the binary string. It is implemented using a BitSet object

numberOfBits_

protected int numberOfBits_

Store the length of the binary string

Constructor Detail

Binary

public Binary()

Default constructor.

Binary

public Binary(int numberOfBits)

Constructor

Parameters:

numberOfBits - Length of the bit string

Binary

public Binary(Binary variable)

Copy constructor.

Parameters:

variable - The Binary encodings.variable to copy.

Method Detail

decode

public void decode()

This method is intended to be used in subclass of Binary, for examples the classes, BinaryReal and BinaryInt. In this classes, the method allows to decode the value enconded in the binary string. As generic variables do not encode any value, this method do noting

deepCopy

public Variable deepCopy()

Creates an exact copy of a Binary object

Specified by:

deepCopy in class Variable

Returns:

An exact copy of the object.

getNumberOfBits

public int getNumberOfBits()

Returns the length of the binary string.

Returns:

The length

getIth

public boolean getIth(int bit)

Returns the value of the ith bit.

Parameters:

bit - The bit to retrieve

Returns:

The ith bit

setIth

public void setIth(int bit,
                   boolean value)

Sets the value of the ith bit.

Parameters:

bit - The bit to set

hammingDistance

public int hammingDistance(Binary other)

Obtain the hamming distance between two binary strings

Parameters:

other - The binary string to compare

Returns:

The hamming distance

toString

public java.lang.String toString()

Overrides:

toString in class java.lang.Object