Array setByte() method in Java

The java.lang.reflect.Array.setByte() is an inbuilt method in Java and is used to set a specified byte value to a specified index of a given object array. Syntax:

Array.setByte(Object []array, int index, byte value)

Parameter: This method takes 3 parameters:

• array: This is an array of type Object which is to be updated.
• index: This is the index of the array which is to be updated.
• value: This is the byte value that is to be set at the given index of the given array.

Exception: 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.

Below programs illustrate the Array.setByte() method: Program 1: 

Program 2: To demonstrate java.lang.NullPointerException 

Exception : java.lang.NullPointerException

Program 3: To demonstrate java.lang.ArrayIndexOutOfBoundsException 

Exception : java.lang.ArrayIndexOutOfBoundsException

Program 4: To demonstrate java.lang.IllegalArgumentException