MyArrayList

Class MyArrayList<AnyType>

java.lang.Object
  MyArrayList<AnyType>

public class MyArrayList<AnyType>
extends java.lang.Object
implements java.lang.Iterable<AnyType>
extends java.lang.Object
implements java.lang.Iterable<AnyType>

Constructor Summary
`MyArrayList()` Construct an empty ArrayList.

Method Summary
`boolean`	`add(AnyType x)` Adds an item to this collection, at the end.
`void`	`add(int idx, AnyType x)` Adds an item to this collection, at the specified index.
`void`	`clear()` Change the size of this collection to zero.
`void`	`ensureCapacity(int newCapacity)`
`AnyType`	`get(int idx)` Returns the item at position idx.
`boolean`	`isEmpty()` Returns true if this collection is empty.
`java.util.Iterator<AnyType>`	`iterator()` Obtains an Iterator object used to traverse the collection.
`AnyType`	`remove(int idx)` Removes an item from this collection.
`AnyType`	`set(int idx, AnyType newVal)` Changes the item at position idx.
`int`	`size()` Returns the number of items in this collection.
`java.lang.String`	`toString()` Returns a String representation of this collection.

Methods inherited from class java.lang.Object
`clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait`

Constructor Detail

public MyArrayList()

Construct an empty ArrayList.

Method Detail

public int size()

Returns the number of items in this collection.

public boolean isEmpty()

Returns true if this collection is empty.

public AnyType get(int idx)

Returns the item at position idx.

Parameters:: idx - the index to search in.
Throws:: java.lang.ArrayIndexOutOfBoundsException - if index is out of range.

public AnyType set(int idx,
                   AnyType newVal)

Changes the item at position idx.

Parameters:: idx - the index to change.; newVal - the new value.
Returns:: the old value.
Throws:: java.lang.ArrayIndexOutOfBoundsException - if index is out of range.

public void ensureCapacity(int newCapacity)

public boolean add(AnyType x)

Adds an item to this collection, at the end.

public void add(int idx,
                AnyType x)

Adds an item to this collection, at the specified index.

public AnyType remove(int idx)

Removes an item from this collection.

public void clear()

Change the size of this collection to zero.

public java.util.Iterator<AnyType> iterator()

Obtains an Iterator object used to traverse the collection.

public java.lang.String toString()

Returns a String representation of this collection.