Java array class parameter
The Array class provides static methods to dynamically create and access Java arrays. Array permits widening conversions to occur during a get or set operation, but throws an IllegalArgumentException if a narrowing conversion would occur.
Method Summary
Sets the value of the indexed component of the specified array object to the specified boolean value.
Methods inherited from class java.lang.Object
Method Detail
newInstance
public static Object newInstance(Class componentType, int length) throws NegativeArraySizeException
Creates a new array with the specified component type and length. Invoking this method is equivalent to creating an array as follows:
int[] x = ; Array.newInstance(componentType, x);
newInstance
public static Object newInstance(Class componentType, int. dimensions) throws IllegalArgumentException, NegativeArraySizeException
Creates a new array with the specified component type and dimensions. If componentType represents a non-array class or interface, the new array has dimensions.length dimensions and componentType as its component type. If componentType represents an array class, the number of dimensions of the new array is equal to the sum of dimensions.length and the number of dimensions of componentType . In this case, the component type of the new array is the component type of componentType . The number of dimensions of the new array must not exceed 255.
getLength
public static int getLength(Object array) throws IllegalArgumentException
get
public static Object get(Object array, int index) throws IllegalArgumentException, ArrayIndexOutOfBoundsException
Returns the value of the indexed component in the specified array object. The value is automatically wrapped in an object if it has a primitive type.
getBoolean
public static boolean getBoolean(Object array, int index) throws IllegalArgumentException, ArrayIndexOutOfBoundsException
getByte
public static byte getByte(Object array, int index) throws IllegalArgumentException, ArrayIndexOutOfBoundsException
getChar
public static char getChar(Object array, int index) throws IllegalArgumentException, ArrayIndexOutOfBoundsException
getShort
public static short getShort(Object array, int index) throws IllegalArgumentException, ArrayIndexOutOfBoundsException
getInt
public static int getInt(Object array, int index) throws IllegalArgumentException, ArrayIndexOutOfBoundsException
getLong
public static long getLong(Object array, int index) throws IllegalArgumentException, ArrayIndexOutOfBoundsException
getFloat
public static float getFloat(Object array, int index) throws IllegalArgumentException, ArrayIndexOutOfBoundsException
getDouble
public static double getDouble(Object array, int index) throws IllegalArgumentException, ArrayIndexOutOfBoundsException
set
public static void set(Object array, int index, Object value) throws IllegalArgumentException, ArrayIndexOutOfBoundsException
Sets the value of the indexed component of the specified array object to the specified new value. The new value is first automatically unwrapped if the array has a primitive component type.
setBoolean
public static void setBoolean(Object array, int index, boolean z) throws IllegalArgumentException, ArrayIndexOutOfBoundsException
Sets the value of the indexed component of the specified array object to the specified boolean value.
setByte
public static void setByte(Object array, int index, byte b) throws IllegalArgumentException, ArrayIndexOutOfBoundsException
setChar
public static void setChar(Object array, int index, char c) throws IllegalArgumentException, ArrayIndexOutOfBoundsException
setShort
public static void setShort(Object array, int index, short s) throws IllegalArgumentException, ArrayIndexOutOfBoundsException
setInt
public static void setInt(Object array, int index, int i) throws IllegalArgumentException, ArrayIndexOutOfBoundsException
setLong
public static void setLong(Object array, int index, long l) throws IllegalArgumentException, ArrayIndexOutOfBoundsException
setFloat
public static void setFloat(Object array, int index, float f) throws IllegalArgumentException, ArrayIndexOutOfBoundsException
setDouble
public static void setDouble(Object array, int index, double d) throws IllegalArgumentException, ArrayIndexOutOfBoundsException
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