java.lang.Object | |
↳ | java.lang.reflect.Array |
Provides static methods to create and access arrays dynamically.
Public Methods | |||||||||||
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Returns the element of the array at the specified index.
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Returns the boolean at the given index in the given boolean array.
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Returns the byte at the given index in the given byte array.
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Returns the char at the given index in the given char array.
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Returns the double at the given index in the given array.
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Returns the float at the given index in the given array.
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Returns the int at the given index in the given array.
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Returns the length of the array.
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Returns the long at the given index in the given array.
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Returns the short at the given index in the given array.
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Returns a new array of the specified component type and length.
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Returns a new multidimensional array of the specified component type and
dimensions.
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Sets the element of the array at the specified index to the value.
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Sets
array[index] = value
.
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Sets
array[index] = value
.
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Sets
array[index] = value
.
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Sets
array[index] = value
.
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Sets
array[index] = value
.
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Sets
array[index] = value
.
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Sets
array[index] = value
.
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Sets
array[index] = value
.
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[Expand]
Inherited Methods
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From class
java.lang.Object
|
Returns the element of the array at the specified index. Equivalent to
array[index]
.
If the array component is a primitive type, the result is automatically boxed.
NullPointerException |
if
array == null
|
---|---|
IllegalArgumentException |
if
array
is not an array
|
ArrayIndexOutOfBoundsException |
if
index < 0 || index >= array.length
|
Returns the boolean at the given index in the given boolean array.
NullPointerException |
if
array == null
|
---|---|
IllegalArgumentException |
if
array
is not an array or the element at the
index position can not be converted to the return type
|
ArrayIndexOutOfBoundsException |
if
index < 0 || index >= array.length
|
Returns the byte at the given index in the given byte array.
NullPointerException |
if
array == null
|
---|---|
IllegalArgumentException |
if
array
is not an array or the element at the
index position can not be converted to the return type
|
ArrayIndexOutOfBoundsException |
if
index < 0 || index >= array.length
|
Returns the char at the given index in the given char array.
NullPointerException |
if
array == null
|
---|---|
IllegalArgumentException |
if
array
is not an array or the element at the
index position can not be converted to the return type
|
ArrayIndexOutOfBoundsException |
if
index < 0 || index >= array.length
|
Returns the double at the given index in the given array. Applies to byte, char, float, double, int, long, and short arrays.
NullPointerException |
if
array == null
|
---|---|
IllegalArgumentException |
if
array
is not an array or the element at the
index position can not be converted to the return type
|
ArrayIndexOutOfBoundsException |
if
index < 0 || index >= array.length
|
Returns the float at the given index in the given array. Applies to byte, char, float, int, long, and short arrays.
NullPointerException |
if
array == null
|
---|---|
IllegalArgumentException |
if
array
is not an array or the element at the
index position can not be converted to the return type
|
ArrayIndexOutOfBoundsException |
if
index < 0 || index >= array.length
|
Returns the int at the given index in the given array. Applies to byte, char, int, and short arrays.
NullPointerException |
if
array == null
|
---|---|
IllegalArgumentException |
if
array
is not an array or the element at the
index position can not be converted to the return type
|
ArrayIndexOutOfBoundsException |
if
index < 0 || index >= array.length
|
Returns the length of the array. Equivalent to
array.length
.
NullPointerException |
if
array == null
|
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IllegalArgumentException |
if
array
is not an array
|
Returns the long at the given index in the given array. Applies to byte, char, int, long, and short arrays.
NullPointerException |
if
array == null
|
---|---|
IllegalArgumentException |
if
array
is not an array or the element at the
index position can not be converted to the return type
|
ArrayIndexOutOfBoundsException |
if
index < 0 || index >= array.length
|
Returns the short at the given index in the given array. Applies to byte and short arrays.
NullPointerException |
if
array == null
|
---|---|
IllegalArgumentException |
if
array
is not an array or the element at the
index position can not be converted to the return type
|
ArrayIndexOutOfBoundsException |
if
index < 0 || index >= array.length
|
Returns a new array of the specified component type and length.
Equivalent to
new componentType[size]
.
NullPointerException | if the component type is null |
---|---|
NegativeArraySizeException |
if
size < 0
|
Returns a new multidimensional array of the specified component type and
dimensions. Equivalent to
new componentType[d0][d1]...[dn]
for a
dimensions array of { d0, d1, ... , dn }.
NullPointerException |
if
array == null
|
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NegativeArraySizeException | if any of the dimensions are negative |
IllegalArgumentException | if the array of dimensions is of size zero, or exceeds the limit of the number of dimension for an array (currently 255) |
Sets the element of the array at the specified index to the value.
Equivalent to
array[index] = value
. If the array
component is a primitive type, the value is automatically unboxed.
NullPointerException |
if
array == null
|
---|---|
IllegalArgumentException |
if
array
is not an array or the value cannot be
converted to the array type by a widening conversion
|
ArrayIndexOutOfBoundsException |
if
index < 0 || index >= array.length
|
Sets
array[index] = value
. Applies to boolean arrays.
NullPointerException |
if
array == null
|
---|---|
IllegalArgumentException |
if the
array
is not an array or the value cannot be
converted to the array type by a widening conversion
|
ArrayIndexOutOfBoundsException |
if
index < 0 || index >= array.length
|
Sets
array[index] = value
. Applies to byte, double, float, int, long, and short arrays.
NullPointerException |
if
array == null
|
---|---|
IllegalArgumentException |
if the
array
is not an array or the value cannot be
converted to the array type by a widening conversion
|
ArrayIndexOutOfBoundsException |
if
index < 0 || index >= array.length
|
Sets
array[index] = value
. Applies to char, double, float, int, and long arrays.
NullPointerException |
if
array == null
|
---|---|
IllegalArgumentException |
if the
array
is not an array or the value cannot be
converted to the array type by a widening conversion
|
ArrayIndexOutOfBoundsException |
if
index < 0 || index >= array.length
|
Sets
array[index] = value
. Applies to double arrays.
NullPointerException |
if
array == null
|
---|---|
IllegalArgumentException |
if the
array
is not an array or the value cannot be
converted to the array type by a widening conversion
|
ArrayIndexOutOfBoundsException |
if
index < 0 || index >= array.length
|
Sets
array[index] = value
. Applies to double and float arrays.
NullPointerException |
if
array == null
|
---|---|
IllegalArgumentException |
if the
array
is not an array or the value cannot be
converted to the array type by a widening conversion
|
ArrayIndexOutOfBoundsException |
if
index < 0 || index >= array.length
|
Sets
array[index] = value
. Applies to double, float, int, and long arrays.
NullPointerException |
if
array == null
|
---|---|
IllegalArgumentException |
if the
array
is not an array or the value cannot be
converted to the array type by a widening conversion
|
ArrayIndexOutOfBoundsException |
if
index < 0 || index >= array.length
|
Sets
array[index] = value
. Applies to double, float, and long arrays.
NullPointerException |
if
array == null
|
---|---|
IllegalArgumentException |
if the
array
is not an array or the value cannot be
converted to the array type by a widening conversion
|
ArrayIndexOutOfBoundsException |
if
index < 0 || index >= array.length
|
Sets
array[index] = value
. Applies to double, float, int, long, and short arrays.
NullPointerException |
if
array == null
|
---|---|
IllegalArgumentException |
if the
array
is not an array or the value cannot be
converted to the array type by a widening conversion
|
ArrayIndexOutOfBoundsException |
if
index < 0 || index >= array.length
|