Package com.serov.lab1

Class Container<T>

java.lang.Object
com.serov.lab1.Container<T>
public class Container<T> extends Object
Container implementation
Author:
n.a.serov

  • Field Summary

    Fields
    Modifier and Type
    Field
    Description
    static final int
    DEFAULT_SIZE
    Default size

  • Constructor Summary

    Constructors
    Constructor
    Description
    Container()
    Default constructor without parameters, creates a container of a size defined in Container.DEFAULT_SIZE
    Container(int size)
    Constructor with given size, creates a container of given size
    Container(int elementsCount, int size, T[] elements)
    Constructor with all given fields, creates a container with given elements count, given size and copies the array of type T

  • Method Summary

    Modifier and Type
    Method
    Description
    void
    clear()
    Clears the container and sets elements count to 0, container size does not change
    T
    getElementAt(int index)
    Returns the element at given index
    int
    getElementsCount()
    Returns the count of elements in a container
    int
    getSize()
    Returns the size of a container
    void
    insertElement(T newValue)
    Inserts a new element to the end of the container
    T
    removeElementAt(int index)
    Removes the element at given index, rebuilds the container without this element
    void
    setElementAt(int index, T newValue)
    Sets the count of elements of a container
    String
    toString()
    Returns the container's elements as a string

    Methods inherited from class java.lang.Object

    clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

  • Field Details

  • Constructor Details

    • Container

      public Container()
      Default constructor without parameters, creates a container of a size defined in Container.DEFAULT_SIZE

    • Container

      public Container(int size)
      Constructor with given size, creates a container of given size
      Parameters:
      size - the size of a new container

    • Container

      public Container(int elementsCount, int size, T[] elements)
      Constructor with all given fields, creates a container with given elements count, given size and copies the array of type T
      Parameters:
      elementsCount - the count of elements of a new container
      size - the size of a new container
      elements - the array of elements to be copied to a new container

  • Method Details

    • clear

      public void clear()
      Clears the container and sets elements count to 0, container size does not change

    • getSize

      public int getSize()
      Returns the size of a container
      Returns:
      the size of a container

    • getElementsCount

      public int getElementsCount()
      Returns the count of elements in a container
      Returns:
      the count of elements in a container

    • getElementAt

      public T getElementAt(int index) throws IndexOutOfBoundsException
      Returns the element at given index
      Parameters:
      index - index of an element to get value from
      Returns:
      the element at given index
      Throws:
      IndexOutOfBoundsException - If the given index is not in a current container's bounds

    • setElementAt

      public void setElementAt(int index, T newValue) throws NullPointerException
      Sets the count of elements of a container
      Parameters:
      index - the index of an element to be changed
      newValue - the new value of an element to be changed
      Throws:
      NullPointerException - If a new value is null

    • insertElement

      public void insertElement(T newValue) throws NullPointerException
      Inserts a new element to the end of the container
      Parameters:
      newValue - the value of an element to be added to the end of the container
      Throws:
      NullPointerException - If a new value in null

    • removeElementAt

      public T removeElementAt(int index) throws IndexOutOfBoundsException
      Removes the element at given index, rebuilds the container without this element
      Parameters:
      index - the index of an element to remove
      Returns:
      the value of the removed element
      Throws:
      IndexOutOfBoundsException - If the given index is not in a current container's bounds

    • toString

      public String toString()
      Returns the container's elements as a string
      Overrides:
      toString in class Object
      Returns:
      the container's elements