jmetal.problems.ZDT
Class ZDT2

java.lang.Object
  jmetal.core.Problem
      jmetal.problems.ZDT.ZDT2

All Implemented Interfaces:

java.io.Serializable

public class ZDT2
extends Problem

Class representing problem ZDT2

See Also:

Serialized Form

Field Summary

Fields inherited from class jmetal.core.Problem

length_, lowerLimit_, numberOfConstraints_, numberOfObjectives_, numberOfVariables_, problemName_, solutionType_, upperLimit_

Constructor Summary

ZDT2(java.lang.String solutionType)
Constructor.

ZDT2(java.lang.String solutionType, java.lang.Integer numberOfVariables)
Constructor.

Method Summary

double	evalH(double f, double g) Returns the value of the ZDT2 function H.
void	evaluate(Solution solution) Evaluates a solution

Methods inherited from class jmetal.core.Problem

evaluateConstraints, getLength, getLowerLimit, getName, getNumberOfBits, getNumberOfConstraints, getNumberOfObjectives, getNumberOfVariables, getPrecision, getPrecision, getSolutionType, getUpperLimit, setNumberOfVariables, setPrecision, setSolutionType

Methods inherited from class java.lang.Object

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

Constructor Detail

ZDT2

public ZDT2(java.lang.String solutionType)
     throws java.lang.ClassNotFoundException

Constructor. Creates a default instance of problem ZDT2 (30 decision variables)

Parameters:

solutionType - The solution type must "Real", "BinaryReal, and "ArrayReal".

Throws:

java.lang.ClassNotFoundException

ZDT2

public ZDT2(java.lang.String solutionType,
            java.lang.Integer numberOfVariables)

Constructor. Creates a new ZDT2 problem instance.

Parameters:

numberOfVariables - Number of variables

solutionType - The solution type must "Real" or "BinaryReal".

Method Detail

evaluate

public void evaluate(Solution solution)
              throws JMException

Evaluates a solution

Specified by:

evaluate in class Problem

Parameters:

solution - The solution to evaluate

Throws:

JMException

evalH

public double evalH(double f,
                    double g)

Returns the value of the ZDT2 function H.

Parameters:

f - First argument of the function H.

g - Second argument of the function H.