The
java.lang.reflect.Array.getDouble() is an inbuilt method of Array class in Java and is used to return the element present at the given index from the specified Array as Double.
Syntax:
Array.getDouble(Object []array, int index)
Parameters: This method accepts two mandatory parameters:
- array: The object array whose index is to be returned.
- index: The particular index of the given array. The element at 'index' in the given array is returned.
Return Value: This method returns the element of the array as byte.
Exceptions: This method throws following exceptions:
- NullPointerException - when the array is null.
- IllegalArgumentException - when the given object array is not an Array.
- ArrayIndexOutOfBoundsException - if the given index is not in the range of the size of the array.
Note: Typecast isn't necessary as the return type is double.
Below programs illustrate the getDouble() method of Array class.
Program 1:
Program 2:
Output:
Exception : java.lang.ArrayIndexOutOfBoundsException
Program 3:
Output:
Exception : java.lang.NullPointerException
Program 4:
Output:
Exception : java.lang.IllegalArgumentException: Argument is not an array
Program 5:
