gnu.trove.stack.array
Class TIntArrayStack

java.lang.Object
  gnu.trove.stack.array.TIntArrayStack

All Implemented Interfaces:

TIntStack, java.io.Externalizable, java.io.Serializable

public class TIntArrayStack
extends java.lang.Object
implements TIntStack, java.io.Externalizable

A stack of int primitives, backed by a TIntArrayList

See Also:

Serialized Form

Field Summary

protected TIntArrayList	_list the list used to hold the stack values.
static int	DEFAULT_CAPACITY

Constructor Summary

TIntArrayStack()
Creates a new TIntArrayStack instance with the default capacity.

TIntArrayStack(int capacity)
Creates a new TIntArrayStack instance with the specified capacity.

TIntArrayStack(int capacity, int no_entry_value)
Creates a new TIntArrayStack instance with the specified capacity.

TIntArrayStack(TIntStack stack)
Creates a new TIntArrayStack instance that is a copy of the instanced passed to us.

Method Summary

void	clear() Clears the stack.
boolean	equals(java.lang.Object o)
int	getNoEntryValue() Returns the value that is used to represent null.
int	hashCode()
int	peek() Returns the value at the top of the stack.
int	pop() Removes and returns the value at the top of the stack.
void	push(int val) Pushes the value onto the top of the stack.
void	readExternal(java.io.ObjectInput in)
int	size() Returns the current depth of the stack.
int[]	toArray() Copies the contents of the stack into a native array.
void	toArray(int[] dest) Copies a slice of the list into a native array.
java.lang.String	toString() Returns a String representation of the list, top to bottom.
void	writeExternal(java.io.ObjectOutput out)

Methods inherited from class java.lang.Object

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

Field Detail

_list

protected TIntArrayList _list

the list used to hold the stack values.

DEFAULT_CAPACITY

public static final int DEFAULT_CAPACITY

See Also:

Constant Field Values

Constructor Detail

TIntArrayStack

public TIntArrayStack()

Creates a new TIntArrayStack instance with the default capacity.

TIntArrayStack

public TIntArrayStack(int capacity)

Creates a new TIntArrayStack instance with the specified capacity.

Parameters:

capacity - the initial depth of the stack

TIntArrayStack

public TIntArrayStack(int capacity,
                      int no_entry_value)

Creates a new TIntArrayStack instance with the specified capacity.

Parameters:

capacity - the initial depth of the stack

no_entry_value - value that represents null

TIntArrayStack

public TIntArrayStack(TIntStack stack)

Creates a new TIntArrayStack instance that is a copy of the instanced passed to us.

Parameters:

stack - the instance to copy

Method Detail

getNoEntryValue

public int getNoEntryValue()

Returns the value that is used to represent null. The default value is generally zero, but can be changed during construction of the collection.

Specified by:

getNoEntryValue in interface TIntStack

Returns:

the value that represents null

push

public void push(int val)

Pushes the value onto the top of the stack.

Specified by:

push in interface TIntStack

Parameters:

val - an int value

pop

public int pop()

Removes and returns the value at the top of the stack.

Specified by:

pop in interface TIntStack

Returns:

an int value

peek

public int peek()

Returns the value at the top of the stack.

Specified by:

peek in interface TIntStack

Returns:

an int value

size

public int size()

Returns the current depth of the stack.

Specified by:

size in interface TIntStack

clear

public void clear()

Clears the stack.

Specified by:

clear in interface TIntStack

toArray

public int[] toArray()

Copies the contents of the stack into a native array. Note that this will NOT pop them out of the stack. The front of the list will be the top of the stack.

Specified by:

toArray in interface TIntStack

Returns:

an int[] value

toArray

public void toArray(int[] dest)

Copies a slice of the list into a native array. Note that this will NOT pop them out of the stack. The front of the list will be the top of the stack.

If the native array is smaller than the stack depth, the native array will be filled with the elements from the top of the array until it is full and exclude the remainder.

Specified by:

toArray in interface TIntStack

Parameters:

dest - the array to copy into.

toString

public java.lang.String toString()

Returns a String representation of the list, top to bottom.

Overrides:

toString in class java.lang.Object

Returns:

a String value

equals

public boolean equals(java.lang.Object o)

Overrides:

equals in class java.lang.Object

hashCode

public int hashCode()

Overrides:

hashCode in class java.lang.Object

writeExternal

public void writeExternal(java.io.ObjectOutput out)
                   throws java.io.IOException

Specified by:

writeExternal in interface java.io.Externalizable

Throws:

java.io.IOException

readExternal

public void readExternal(java.io.ObjectInput in)
                  throws java.io.IOException,
                         java.lang.ClassNotFoundException

Specified by:

readExternal in interface java.io.Externalizable

Throws:

java.io.IOException

java.lang.ClassNotFoundException