Method Summary

Method Details

• newInstance

  public static Object newInstance(Class<?> componentType, int length) throwsNegativeArraySizeException

  Creates a new array with the specified component type andlength.

  Implementation Requirements:

  Invoking this method is equivalent to creating an arrayas follows:

  Array.newInstance(componentType, new int[]{length});

  The number of dimensions of the new array must notexceed 255.

  Parameters:

  componentType - theClass object representing the component type of the new array

  length - the length of the new array

  Returns:

  the new array

  Throws:

  NullPointerException - if the specifiedcomponentType parameter is null

  IllegalArgumentException - if componentType isVoid.TYPE or if the number of dimensions of the requested array instance exceed 255.

  NegativeArraySizeException - if the specifiedlength is negative

• newInstance

  public static Object newInstance(Class<?> componentType, int... dimensions) throwsIllegalArgumentException,NegativeArraySizeException

  Creates a new arraywith the specified component type and dimensions.IfcomponentTyperepresents a non-array class or interface, the new arrayhasdimensions.length dimensions andcomponentType as its component type. IfcomponentType represents an array class, thenumber of dimensions of the new array is equal to the sumofdimensions.length and the number ofdimensions ofcomponentType. In this case, thecomponent type of the new array is the component type ofcomponentType.

  The number of dimensions of the new array must notexceed 255.

  Parameters:

  componentType - theClass object representing the componenttype of the new array

  dimensions - an array ofint representing the dimensions ofthe new array

  Returns:

  the new array

  Throws:

  NullPointerException - if the specifiedcomponentType argument is null

  IllegalArgumentException - if the specifieddimensionsargument is a zero-dimensional array, if componentType isVoid.TYPE, or if the number of dimensions of the requested arrayinstance exceed 255.

  NegativeArraySizeException - if any of the components inthe specifieddimensions argument is negative.

• getLength

  public static int getLength(Object array) throwsIllegalArgumentException

  Returns the length of the specified array object, as anint.

  Parameters:

  array - the array

  Returns:

  the length of the array

  Throws:

  IllegalArgumentException - if the object argument is notan array

• get

  public static Object get(Object array, int index) throwsIllegalArgumentException,ArrayIndexOutOfBoundsException

  Returns the value of the indexed component in the specifiedarray object. The value is automatically wrapped in an objectif it has a primitive type.

  Parameters:

  array - the array

  index - the index

  Returns:

  the (possibly wrapped) value of the indexed component inthe specified array

  Throws:

  NullPointerException - If the specified object is null

  IllegalArgumentException - If the specified object is notan array

  ArrayIndexOutOfBoundsException - If the specifiedindexargument is negative, or if it is greater than or equal to thelength of the specified array

• getBoolean

  public static boolean getBoolean(Object array, int index) throwsIllegalArgumentException,ArrayIndexOutOfBoundsException

  Returns the value of the indexed component in the specifiedarray object, as aboolean.

  Parameters:

  array - the array

  index - the index

  Returns:

  the value of the indexed component in the specified array

  Throws:

  NullPointerException - If the specified object is null

  IllegalArgumentException - If the specified object is notan array, or if the indexed element cannot be converted to thereturn type by an identity or widening conversion

  ArrayIndexOutOfBoundsException - If the specifiedindexargument is negative, or if it is greater than or equal to thelength of the specified array

  See Also:

  • get(Object, int)

• getByte

  public static byte getByte(Object array, int index) throwsIllegalArgumentException,ArrayIndexOutOfBoundsException

  Returns the value of the indexed component in the specifiedarray object, as abyte.

  Parameters:

  array - the array

  index - the index

  Returns:

  the value of the indexed component in the specified array

  Throws:

  NullPointerException - If the specified object is null

  IllegalArgumentException - If the specified object is notan array, or if the indexed element cannot be converted to thereturn type by an identity or widening conversion

  ArrayIndexOutOfBoundsException - If the specifiedindexargument is negative, or if it is greater than or equal to thelength of the specified array

  See Also:

  • get(Object, int)

• getChar

  public static char getChar(Object array, int index) throwsIllegalArgumentException,ArrayIndexOutOfBoundsException

  Returns the value of the indexed component in the specifiedarray object, as achar.

  Parameters:

  array - the array

  index - the index

  Returns:

  the value of the indexed component in the specified array

  Throws:

  NullPointerException - If the specified object is null

  IllegalArgumentException - If the specified object is notan array, or if the indexed element cannot be converted to thereturn type by an identity or widening conversion

  ArrayIndexOutOfBoundsException - If the specifiedindexargument is negative, or if it is greater than or equal to thelength of the specified array

  See Also:

  • get(Object, int)

• getShort

  public static short getShort(Object array, int index) throwsIllegalArgumentException,ArrayIndexOutOfBoundsException

  Returns the value of the indexed component in the specifiedarray object, as ashort.

  Parameters:

  array - the array

  index - the index

  Returns:

  the value of the indexed component in the specified array

  Throws:

  NullPointerException - If the specified object is null

  IllegalArgumentException - If the specified object is notan array, or if the indexed element cannot be converted to thereturn type by an identity or widening conversion

  ArrayIndexOutOfBoundsException - If the specifiedindexargument is negative, or if it is greater than or equal to thelength of the specified array

  See Also:

  • get(Object, int)

• getInt

  public static int getInt(Object array, int index) throwsIllegalArgumentException,ArrayIndexOutOfBoundsException

  Returns the value of the indexed component in the specifiedarray object, as anint.

  Parameters:

  array - the array

  index - the index

  Returns:

  the value of the indexed component in the specified array

  Throws:

  NullPointerException - If the specified object is null

  IllegalArgumentException - If the specified object is notan array, or if the indexed element cannot be converted to thereturn type by an identity or widening conversion

  ArrayIndexOutOfBoundsException - If the specifiedindexargument is negative, or if it is greater than or equal to thelength of the specified array

  See Also:

  • get(Object, int)

• getLong

  public static long getLong(Object array, int index) throwsIllegalArgumentException,ArrayIndexOutOfBoundsException

  Returns the value of the indexed component in the specifiedarray object, as along.

  Parameters:

  array - the array

  index - the index

  Returns:

  the value of the indexed component in the specified array

  Throws:

  NullPointerException - If the specified object is null

  IllegalArgumentException - If the specified object is notan array, or if the indexed element cannot be converted to thereturn type by an identity or widening conversion

  ArrayIndexOutOfBoundsException - If the specifiedindexargument is negative, or if it is greater than or equal to thelength of the specified array

  See Also:

  • get(Object, int)

• getFloat

  public static float getFloat(Object array, int index) throwsIllegalArgumentException,ArrayIndexOutOfBoundsException

  Returns the value of the indexed component in the specifiedarray object, as afloat.

  Parameters:

  array - the array

  index - the index

  Returns:

  the value of the indexed component in the specified array

  Throws:

  NullPointerException - If the specified object is null

  IllegalArgumentException - If the specified object is notan array, or if the indexed element cannot be converted to thereturn type by an identity or widening conversion

  ArrayIndexOutOfBoundsException - If the specifiedindexargument is negative, or if it is greater than or equal to thelength of the specified array

  See Also:

  • get(Object, int)

• getDouble

  public static double getDouble(Object array, int index) throwsIllegalArgumentException,ArrayIndexOutOfBoundsException

  Returns the value of the indexed component in the specifiedarray object, as adouble.

  Parameters:

  array - the array

  index - the index

  Returns:

  the value of the indexed component in the specified array

  Throws:

  NullPointerException - If the specified object is null

  IllegalArgumentException - If the specified object is notan array, or if the indexed element cannot be converted to thereturn type by an identity or widening conversion

  ArrayIndexOutOfBoundsException - If the specifiedindexargument is negative, or if it is greater than or equal to thelength of the specified array

  See Also:

  • get(Object, int)

• set

  public static void set(Object array, int index,Object value) throwsIllegalArgumentException,ArrayIndexOutOfBoundsException

  Sets the value of the indexed component of the specified arrayobject to the specified new value. The new value is firstautomatically unwrapped if the array has a primitive componenttype.

  Parameters:

  array - the array

  index - the index into the array

  value - the new value of the indexed component

  Throws:

  NullPointerException - If the specified object argumentis null

  IllegalArgumentException - If the specified object argumentis not an array, or if the array component type is primitive andan unwrapping conversion fails

  ArrayIndexOutOfBoundsException - If the specifiedindexargument is negative, or if it is greater than or equal tothe length of the specified array

• setBoolean

  public static void setBoolean(Object array, int index, boolean z) throwsIllegalArgumentException,ArrayIndexOutOfBoundsException

  Sets the value of the indexed component of the specified arrayobject to the specifiedboolean value.

  Parameters:

  array - the array

  index - the index into the array

  z - the new value of the indexed component

  Throws:

  NullPointerException - If the specified object argumentis null

  IllegalArgumentException - If the specified object argumentis not an array, or if the specified value cannot be convertedto the underlying array's component type by an identity or aprimitive widening conversion

  ArrayIndexOutOfBoundsException - If the specifiedindexargument is negative, or if it is greater than or equal tothe length of the specified array

  See Also:

  • set(Object, int, Object)

• setByte

  public static void setByte(Object array, int index, byte b) throwsIllegalArgumentException,ArrayIndexOutOfBoundsException

  Sets the value of the indexed component of the specified arrayobject to the specifiedbyte value.

  Parameters:

  array - the array

  index - the index into the array

  b - the new value of the indexed component

  Throws:

  NullPointerException - If the specified object argumentis null

  IllegalArgumentException - If the specified object argumentis not an array, or if the specified value cannot be convertedto the underlying array's component type by an identity or aprimitive widening conversion

  ArrayIndexOutOfBoundsException - If the specifiedindexargument is negative, or if it is greater than or equal tothe length of the specified array

  See Also:

  • set(Object, int, Object)

• setChar

  public static void setChar(Object array, int index, char c) throwsIllegalArgumentException,ArrayIndexOutOfBoundsException

  Sets the value of the indexed component of the specified arrayobject to the specifiedchar value.

  Parameters:

  array - the array

  index - the index into the array

  c - the new value of the indexed component

  Throws:

  NullPointerException - If the specified object argumentis null

  IllegalArgumentException - If the specified object argumentis not an array, or if the specified value cannot be convertedto the underlying array's component type by an identity or aprimitive widening conversion

  ArrayIndexOutOfBoundsException - If the specifiedindexargument is negative, or if it is greater than or equal tothe length of the specified array

  See Also:

  • set(Object, int, Object)

• setShort

  public static void setShort(Object array, int index, short s) throwsIllegalArgumentException,ArrayIndexOutOfBoundsException

  Sets the value of the indexed component of the specified arrayobject to the specifiedshort value.

  Parameters:

  array - the array

  index - the index into the array

  s - the new value of the indexed component

  Throws:

  NullPointerException - If the specified object argumentis null

  IllegalArgumentException - If the specified object argumentis not an array, or if the specified value cannot be convertedto the underlying array's component type by an identity or aprimitive widening conversion

  ArrayIndexOutOfBoundsException - If the specifiedindexargument is negative, or if it is greater than or equal tothe length of the specified array

  See Also:

  • set(Object, int, Object)

• setInt

  public static void setInt(Object array, int index, int i) throwsIllegalArgumentException,ArrayIndexOutOfBoundsException

  Sets the value of the indexed component of the specified arrayobject to the specifiedint value.

  Parameters:

  array - the array

  index - the index into the array

  i - the new value of the indexed component

  Throws:

  NullPointerException - If the specified object argumentis null

  IllegalArgumentException - If the specified object argumentis not an array, or if the specified value cannot be convertedto the underlying array's component type by an identity or aprimitive widening conversion

  ArrayIndexOutOfBoundsException - If the specifiedindexargument is negative, or if it is greater than or equal tothe length of the specified array

  See Also:

  • set(Object, int, Object)

• setLong

  public static void setLong(Object array, int index, long l) throwsIllegalArgumentException,ArrayIndexOutOfBoundsException

  Sets the value of the indexed component of the specified arrayobject to the specifiedlong value.

  Parameters:

  array - the array

  index - the index into the array

  l - the new value of the indexed component

  Throws:

  NullPointerException - If the specified object argumentis null

  IllegalArgumentException - If the specified object argumentis not an array, or if the specified value cannot be convertedto the underlying array's component type by an identity or aprimitive widening conversion

  ArrayIndexOutOfBoundsException - If the specifiedindexargument is negative, or if it is greater than or equal tothe length of the specified array

  See Also:

  • set(Object, int, Object)

• setFloat

  public static void setFloat(Object array, int index, float f) throwsIllegalArgumentException,ArrayIndexOutOfBoundsException

  Sets the value of the indexed component of the specified arrayobject to the specifiedfloat value.

  Parameters:

  array - the array

  index - the index into the array

  f - the new value of the indexed component

  Throws:

  NullPointerException - If the specified object argumentis null

  IllegalArgumentException - If the specified object argumentis not an array, or if the specified value cannot be convertedto the underlying array's component type by an identity or aprimitive widening conversion

  ArrayIndexOutOfBoundsException - If the specifiedindexargument is negative, or if it is greater than or equal tothe length of the specified array

  See Also:

  • set(Object, int, Object)

• setDouble

  public static void setDouble(Object array, int index, double d) throwsIllegalArgumentException,ArrayIndexOutOfBoundsException

  Sets the value of the indexed component of the specified arrayobject to the specifieddouble value.

  Parameters:

  array - the array

  index - the index into the array

  d - the new value of the indexed component

  Throws:

  NullPointerException - If the specified object argumentis null

  IllegalArgumentException - If the specified object argumentis not an array, or if the specified value cannot be convertedto the underlying array's component type by an identity or aprimitive widening conversion

  ArrayIndexOutOfBoundsException - If the specifiedindexargument is negative, or if it is greater than or equal tothe length of the specified array

  See Also:

  • set(Object, int, Object)