Package it.unimi.dsi.fastutil.ints

Interface IntStack

All Superinterfaces:
Stack<Integer>
All Known Implementing Classes:
AbstractIntBigList, AbstractIntBigList.IntRandomAccessSubList, AbstractIntBigList.IntSubList, AbstractIntList, AbstractIntList.IntRandomAccessSubList, AbstractIntList.IntSubList, AbstractIntStack, IntArrayList, IntBigArrayBigList, IntBigLists.ListBigList, IntBigLists.Singleton, IntImmutableList, IntLists.Singleton, IntMappedBigList
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
    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 Details

    • push

      void push(int k)
      Pushes the given object on the stack.
      Parameters:
      k - the object to push on the stack.
      See Also:

    • popInt

      int popInt()
      Pops the top off the stack.
      Returns:
      the top of the stack.
      See Also:

    • topInt

      int topInt()
      Peeks at the top of the stack (optional operation).
      Returns:
      the top of the stack.
      See Also:

    • 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:

    • 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.