de.jstacs.utils
Class DoubleList

java.lang.Object
  de.jstacs.utils.DoubleList

public final class DoubleList
extends Object

A simple list of primitive type double.

Author:

Jens Keilwagen

Constructor Summary

DoubleList()
This is the default constructor that creates a DoubleList with initial length 10.

DoubleList(int size)
This is the default constructor that creates a DoubleList with initial length size.

Method Summary

void	add(double val) Adds the element val at the end of the list.
void	add(double val, int fromIndex, int toIndex) Adds the element val from fromIndex to toIndex (exclusive).
void	clear() Removes all elements from the list.
double	get(int index) Returns the element with the specified index.
int	length() Returns the number of inserted elements.
void	multiply(int start, int end, double factor) Multiplies all value in the list from index start to end with the value factor
double[]	toArray() This method returns a double array containing all elements of the list.

Methods inherited from class java.lang.Object

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

Constructor Detail

DoubleList

public DoubleList()

This is the default constructor that creates a DoubleList with initial length 10.

DoubleList

public DoubleList(int size)
           throws IllegalArgumentException

This is the default constructor that creates a DoubleList with initial length size.

Parameters:

size - the initial size; has to be positive

Throws:

IllegalArgumentException - if the size is less than 1

Method Detail

add

public final void add(double val)

Adds the element val at the end of the list.

Parameters:

val - the element that should be inserted.

add

public final void add(double val,
                      int fromIndex,
                      int toIndex)

Adds the element val from fromIndex to toIndex (exclusive).

Parameters:

val - the element that should be inserted

fromIndex - the start index (inclusive)

toIndex - the end index (exclusive)

clear

public final void clear()

Removes all elements from the list.

get

public final double get(int index)

Returns the element with the specified index.

Parameters:

index - the specified index

Returns:

the corresponding element

length

public final int length()

Returns the number of inserted elements.

Returns:

the number of inserted elements

toArray

public double[] toArray()

This method returns a double array containing all elements of the list.

Returns:

a double array containing all elements of the list.

multiply

public void multiply(int start,
                     int end,
                     double factor)

Multiplies all value in the list from index start to end with the value factor

Parameters:

start - the start index (inclusive)

end - the end index (exclusive)

factor - the factor