public final class FastStack
extends java.lang.Object
implements java.io.Serializable, java.lang.Cloneable
Constructor and Description |
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FastStack()
Creates a new stack with an initial size and growth of 10 items.
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FastStack(int size)
Creates a new stack with an initial size and growth as specified.
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Modifier and Type | Method and Description |
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void |
clear()
Removes all contents from the stack.
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java.lang.Object |
clone()
Creates a shallow copy of the stack.
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java.lang.Object |
get(int index)
Returns the element from the stack at the given index-position.
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boolean |
isEmpty()
Checks whether the stack is empty.
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java.lang.Object |
peek()
Loads the top-most element from the stack, without removing it from the stack.
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java.lang.Object |
pop()
Loads the top-most element from the stack and removes it from the stack at the same time.
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void |
push(java.lang.Object o)
Pushes a new object on the stack.
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int |
size()
Returns the number of elements in the stack.
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public FastStack()
public FastStack(int size)
size
- the initial size and growth.public boolean isEmpty()
public int size()
public void push(java.lang.Object o)
o
- the object, maybe null.public java.lang.Object peek()
java.util.EmptyStackException
- if the stack is empty.public java.lang.Object pop()
java.util.EmptyStackException
- if the stack is empty.public java.lang.Object clone()
clone
in class java.lang.Object
public void clear()
public java.lang.Object get(int index)
index
- the element's index.java.lang.IndexOutOfBoundsException
- if the index given is greater than the number of objects in the stack.