Stack
CLDC 1.1
| public class java.util Stack
|
CLDC 1.1 |
Stack class represents a last-in-first-out
(LIFO) stack of objects. It extends class Vector with five
operations that allow a vector to be treated as a stack. The usual
push and pop operations are provided, as well as a
method to peek at the top item on the stack, a method to test
for whether the stack is empty, and a method to search
the stack for an item and discover how far it is from the top.
When a stack is first created, it contains no items.
| version | 12/17/01 (CLDC 1.1) |
| since | JDK1.0, CLDC 1.0 |
| Constructors | |
|---|---|
| public | Stack() Creates an empty Stack. |
| Methods | |||||||
|---|---|---|---|---|---|---|---|
| public boolean | empty() Details
Tests if this stack is empty.
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| public Object | peek() Details
Looks at the object at the top of this stack without removing it
from the stack.
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| public Object | pop() Details
Removes the object at the top of this stack and returns that
object as the value of this function.
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| public Object | push(Object item) Details
Pushes an item onto the top of this stack. This has exactly
the same effect as:
addElement(item)
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| public int | search(Object o) Details
Returns the 1-based position where an object is on this stack.
If the object o occurs as an item in this stack, this
method returns the distance from the top of the stack of the
occurrence nearest the top of the stack; the topmost item on the
stack is considered to be at distance 1. The equals
method is used to compare o to the
items in this stack.
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