public final class FastStack
extends java.lang.Object
implements java.io.Serializable, java.lang.Cloneable
Modifier and Type | Field and Description |
---|---|
private java.lang.Object[] |
contents |
private int |
initialSize |
private int |
size |
Constructor and Description |
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FastStack()
Creates a new empty stack.
|
FastStack(int size)
Creates a new empty stack with the specified initial storage size.
|
Modifier and Type | Method and Description |
---|---|
void |
clear()
Clears the stack.
|
java.lang.Object |
clone()
Returns a clone of the stack.
|
java.lang.Object |
get(int index)
Returns the item at the specified slot in the stack.
|
boolean |
isEmpty()
Returns
true if the stack is empty, and false
otherwise. |
java.lang.Object |
peek()
Returns the object at the top of the stack without removing it.
|
java.lang.Object |
pop()
Removes and returns the object from the top of the stack.
|
void |
push(java.lang.Object o)
Pushes an object onto the stack.
|
int |
size()
Returns the number of elements in the stack.
|
private java.lang.Object[] contents
private int size
private int initialSize
public FastStack()
public FastStack(int size)
size
- the initial storage elements.public boolean isEmpty()
true
if the stack is empty, and false
otherwise.public int size()
public void push(java.lang.Object o)
o
- the object.public java.lang.Object peek()
public java.lang.Object pop()
public java.lang.Object clone()
clone
in class java.lang.Object
public void clear()
public java.lang.Object get(int index)
index
- the index.