it.unimi.dsi.fastutil.ints

Interface IntStack

All Superinterfaces:

Stack<Integer>

All Known Implementing Classes:

AbstractIntBigList, AbstractIntBigList.IntSubList, AbstractIntList, AbstractIntList.IntSubList, AbstractIntStack, IntArrayList, IntBigArrayBigList, IntBigLists.ListBigList, IntBigLists.Singleton, IntLists.Singleton

public interface IntStack
extends Stack<Integer>

A type-specific Stack; provides some additional methods that use polymorphism to avoid (un)boxing.

Method Summary

Modifier and Type	Method and Description
default Integer	peek(int i) Deprecated. Please use the corresponding type-specific method instead.
int	peekInt(int i) Peeks at an element on the stack (optional operation).
default Integer	pop() Deprecated. Please use the corresponding type-specific method instead.
int	popInt() Pops the top off the stack.
void	push(int k) Pushes the given object on the stack.
default void	push(Integer o) Deprecated. Please use the corresponding type-specific method instead.
default Integer	top() Deprecated. Please use the corresponding type-specific method instead.
int	topInt() Peeks at the top of the stack (optional operation).

Methods inherited from interface it.unimi.dsi.fastutil.Stack

isEmpty

Method Detail

push

void push(int k)

Pushes the given object on the stack.

Parameters:

k - the object to push on the stack.

See Also:

Stack.push(Object)

popInt

int popInt()

Pops the top off the stack.

Returns:

the top of the stack.

See Also:

Stack.pop()

topInt

int topInt()

Peeks at the top of the stack (optional operation).

Returns:

the top of the stack.

See Also:

Stack.top()

peekInt

int peekInt(int i)

Peeks at an element on the stack (optional operation).

Parameters:

i - an index from the stop of the stack (0 represents the top).

Returns:

the i-th element on the stack.

See Also:

Stack.peek(int)

push

@Deprecated
default void push(Integer o)

Deprecated. Please use the corresponding type-specific method instead.

Pushes the given object on the stack.

This default implementation delegates to the corresponding type-specific method.

Specified by:

push in interface Stack<Integer>

Parameters:

o - the object that will become the new top of the stack.

pop

@Deprecated
default Integer pop()

Deprecated. Please use the corresponding type-specific method instead.

Pops the top off the stack.

This default implementation delegates to the corresponding type-specific method.

Specified by:

pop in interface Stack<Integer>

Returns:

the top of the stack.

top

@Deprecated
default Integer top()

Deprecated. Please use the corresponding type-specific method instead.

Peeks at the top of the stack (optional operation).

This default implementation returns peek(0).

This default implementation delegates to the corresponding type-specific method.

Specified by:

top in interface Stack<Integer>

Returns:

the top of the stack.

peek

@Deprecated
default Integer peek(int i)

Deprecated. Please use the corresponding type-specific method instead.

Peeks at an element on the stack (optional operation).

This default implementation just throws an UnsupportedOperationException.

This default implementation delegates to the corresponding type-specific method.

Specified by:

peek in interface Stack<Integer>

Parameters:

i - an index from the stop of the stack (0 represents the top).

Returns:

the i-th element on the stack.