public class ArrayClass extends java lang Object Description Class wrapper for a Java array, with additional management operations Note Maintains a capacity value for maximum number of items that can be stored, and a size value for the number of valid or viable data items in the array Implement the followings in ArrayClass Field Detail DEFAULT CAPACITY private static final int DEFAULT CAPACITY See Also Constant Field Values FAILED ACCESS public static final int FAILED ACCESS See Also Constant Field Values localArray private int localArray arraySize private int arraySize arrayCapacity private int arrayCapacity Constructor Detail ArrayClass public ArrayClass() Default constructor, initializes array to default capacity (10) ArrayClass public ArrayClass(int capacity) Initializing constructor, initializes array to specified capacity Parameters capacity integer maximum capacity specification for the array ArrayClass public ArrayClass(int capacity, int size, int fillValue) Initializing constructor, initializes array to specified capacity, size to specified value, then fills all elements with specified size value Parameters capacity maximum capacity specification for the array size sets the number of items to be filled in array, and sets the size of the ArrayClass object fillValue value to be placed in all elements of initialized array up to the size ArrayClass public ArrayClass(ArrayClass copied) Copy constructor, initializes array to size and capacity of copied array, then copies only the elements up to the given size Parameters copied ArrayClass object to be copied Method Detail accessItemAt public int accessItemAt(int accessIndex) Accesses item in array at specified index if index within array size bounds Parameters accessIndex index of requested element value Returns accessed value if successful, FAILED ACCESS ( 999999) if not appendItem public boolean appendItem(int newValue) Appends item to end of array, if array is not full, e g , no more values can be added Parameters newValue value to be appended to array Returns Boolean success if appended, or failure if array was full clear public void clear() Clears array of all valid values by setting array size to zero, values remain in array but are not accessible getCurrentCapacity public int getCurrentCapacity() Description Gets current capacity of array Note capacity of array indicates number of values the array can hold Returns capacity of array getCurrentSize public int getCurrentSize() Description Gets current size of array Note size of array indicates number of valid or viable values in the array Returns size of array insertItemAt public boolean insertItemAt(int insertIndex, int newValue) Description Inserts item to array at specified index if array is not full, e g , no more values can be added Note Value is inserted at given index, all data from that index to the end of the array is shifted up by one Note Value can be inserted after the last valid element but not at any index past that point Parameters insertIndex index of element into which value is to be inserted newValue value to be inserted into array Returns Boolean success if inserted, or failure if array was full isFull public boolean isFull() Tests for size of array equal to capacity, no more values can be added Returns Boolean result of test for full isEmpty public boolean isEmpty() Tests for size of array equal to zero, no valid values stored in array Returns Boolean result of test for empty removeItemAt public int removeItemAt(int removeIndex) Description Removes item from array at specified index if index within array size bounds Note Each data item from the element immediately above the remove index to the end of the array is moved down by one element Parameters removeIndex index of element value to be removed Returns removed value if successful, FAILED ACCESS ( 999999) if not resize public boolean resize(int newCapacity) Description Resets array capacity, copies current size and current size number of elements Exception Method will not resize capacity below current array capacity, returns false if this is attempted, true otherwise Parameters newCapacity new capacity to be set must be larger than current capacity Returns Boolean condition of resize success or failure

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public class ArrayClass extends java.lang.Object Description: Class wrapper for a Java array, with additional management operations Note: Maintains a capacity value for maximum number of

public class ArrayClass

extends java.lang.Object

Description: Class wrapper for a Java array, with additional management operations

Note: Maintains a capacity value for maximum number of items that can be stored, and a size value for the number of valid or viable data items in the array

Implement the followings in ArrayClass:

Field Detail

DEFAULT_CAPACITY
```
private static final int DEFAULT_CAPACITY
```
See Also:

Constant Field Values
FAILED_ACCESS
```
public static final int FAILED_ACCESS
```
See Also:

Constant Field Values
localArray
```
private int[] localArray
```
arraySize
```
private int arraySize
```
arrayCapacity
```
private int arrayCapacity
```

Constructor Detail
- ArrayClass
```
public ArrayClass()
```
  Default constructor, initializes array to default capacity (10)
- ArrayClass
```
public ArrayClass(int capacity)
```
  Initializing constructor, initializes array to specified capacity
  
  Parameters:
  
  capacity - integer maximum capacity specification for the array
- ArrayClass
```
public ArrayClass(int capacity, int size, int fillValue)
```
  Initializing constructor, initializes array to specified capacity, size to specified value, then fills all elements with specified size value
  
  Parameters:
  
  capacity - maximum capacity specification for the array
  
  size - sets the number of items to be filled in array, and sets the size of the ArrayClass object
  
  fillValue - value to be placed in all elements of initialized array up to the size
- ArrayClass
```
public ArrayClass(ArrayClass copied)
```
  Copy constructor, initializes array to size and capacity of copied array, then copies only the elements up to the given size
  
  Parameters:
  
  copied - ArrayClass object to be copied

Method Detail
- accessItemAt
```
public int accessItemAt(int accessIndex)
```
  Accesses item in array at specified index if index within array size bounds
  
  Parameters:
  
  accessIndex - index of requested element value
  
  Returns:
  
  accessed value if successful, FAILED_ACCESS (-999999) if not
- appendItem
```
public boolean appendItem(int newValue)
```
  Appends item to end of array, if array is not full, e.g., no more values can be added
  
  Parameters:
  
  newValue - value to be appended to array
  
  Returns:
  
  Boolean success if appended, or failure if array was full
- clear
```
public void clear()
```
  Clears array of all valid values by setting array size to zero, values remain in array but are not accessible
- getCurrentCapacity
```
public int getCurrentCapacity()
```
  Description: Gets current capacity of array
  Note: capacity of array indicates number of values the array can hold
  
  Returns:
  
  capacity of array
- getCurrentSize
```
public int getCurrentSize()
```
  Description: Gets current size of array
  Note: size of array indicates number of valid or viable values in the array
  
  Returns:
  
  size of array
- insertItemAt
```
public boolean insertItemAt(int insertIndex, int newValue)
```
  Description: Inserts item to array at specified index if array is not full, e.g., no more values can be added
  Note: Value is inserted at given index, all data from that index to the end of the array is shifted up by one
  
  Note: Value can be inserted after the last valid element but not at any index past that point
  
  Parameters:
  
  insertIndex - index of element into which value is to be inserted
  
  newValue - value to be inserted into array
  
  Returns:
  
  Boolean success if inserted, or failure if array was full
- isFull
```
public boolean isFull()
```
  Tests for size of array equal to capacity, no more values can be added
  
  Returns:
  
  Boolean result of test for full
- isEmpty
```
public boolean isEmpty()
```
  Tests for size of array equal to zero, no valid values stored in array
  
  Returns:
  
  Boolean result of test for empty
- removeItemAt
```
public int removeItemAt(int removeIndex)
```
  Description: Removes item from array at specified index if index within array size bounds
  Note: Each data item from the element immediately above the remove index to the end of the array is moved down by one element
  
  Parameters:
  
  removeIndex - index of element value to be removed
  
  Returns:
  
  removed value if successful, FAILED_ACCESS (-999999) if not
- resize
```
public boolean resize(int newCapacity)
```
  Description: Resets array capacity, copies current size and current size number of elements
  Exception: Method will not resize capacity below current array capacity, returns false if this is attempted, true otherwise
  
  Parameters:
  
  newCapacity - new capacity to be set; must be larger than current capacity
  
  Returns:
  
  Boolean condition of resize success or failure