What happens in Java when a program trics to use a subscript that is out-of bounds?

In Java, an array is a contiguous block of memory that holds elements of the same data type. Each element has a subscript (or index) that denotes its position within the array. The subscript ranges from 0 (inclusive) to the array's length (exclusive). An out-of-bounds subscript occurs when a program tries to access an element outside this valid range of indices.

When a program attempts to use a subscript that is outside the valid range of indices, Java throws an ArrayIndexOutOfBoundsException. This is a special type of exception that indicates an error in the runtime execution of the program related to array indexing.

When Java detects an ArrayIndexOutOfBoundsException, it does not proceed with further execution of the program. To handle this exception, you can either use a try-catch block to catch the exception and take appropriate action or avoid the exception by using proper subscript bounds-checking mechanisms like conditional statements to check if the subscript is within the array's length. Here's an example of how to catch an ArrayIndexOutOfBoundsException and take appropriate action: ```java public class OutOfBoundsExample { public static void main(String[] args) { int[] arr = {1, 2, 3, 4}; try { System.out.println(arr[4]); } catch (ArrayIndexOutOfBoundsException e) { System.err.println("Error: Attempted to access an out-of-bounds array index"); } } } ``` In this example, the program tries to access the element at index 4 of the array 'arr', which is out of bounds, as the maximum valid index is 3. The ArrayIndexOutOfBoundsException is caught by the catch block, and an error message is printed instead of crashing the program.