net.sourceforge.webcompmath.data
Class StackOfDouble

java.lang.Object
  net.sourceforge.webcompmath.data.StackOfDouble

All Implemented Interfaces:

java.io.Serializable

public class StackOfDouble
extends java.lang.Object
implements java.io.Serializable

A standard stack of values of type double, which can grow to arbitrary size.

See Also:

Serialized Form

Constructor Summary

StackOfDouble()
Create an initially empty stack.

StackOfDouble(int initialSize)
Create an empty stack that initially has space for initialSize items pre-allocated.

Method Summary

boolean	isEmpty() Return true if and only if the stack contains no items.
void	makeEmpty() Clear all items from the stack.
double	pop() Remove and return the top item on the stack.
void	push(double x) Add x to top of stack.
int	size() Return the number of items on the stack.

Methods inherited from class java.lang.Object

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

Constructor Detail

StackOfDouble

public StackOfDouble()

Create an initially empty stack. It initially has space allocated for one item.

StackOfDouble

public StackOfDouble(int initialSize)

Create an empty stack that initially has space for initialSize items pre-allocated. If initialSize <= 0, an initialSize of 1 is used.

Parameters:

initialSize - number of items to initially allow space for

Method Detail

push

public void push(double x)

Add x to top of stack.

Parameters:

x - value to add to stack

pop

public double pop()

Remove and return the top item on the stack. Will throw an exception of type java.util.EmptyStackException if the stack is empty when pop() is called.

Returns:

value from stack

isEmpty

public boolean isEmpty()

Return true if and only if the stack contains no items.

Returns:

true or false

makeEmpty

public void makeEmpty()

Clear all items from the stack.

size

public int size()

Return the number of items on the stack.

Returns:

number of items