Question

Find and correct the error in each of the following program segments.

a. final int ARRAY_SIZE = 5; ARRAY_SIZE = 10;

b. int [] b = new int [10]; for ( int i = 0; i <= b . length ; i ++) b [ i ] = 1;

c. int [][] a = {{1 , 2} , {3 , 4}}; a [1 ,1] = 5;

Answer 1

The errors include attempting to change a final variable's value, using incorrect loop bounds that exceed the array's length, and incorrect syntax for accessing elements in a two-dimensional array.

Step-by-step explanation:

Correction of Errors in Program Segments

a. The error here is that the final keyword in Java is used to define constants, so once ARRAY_SIZE has been assigned a value of 5, it cannot be reassigned. The correct code would not attempt to change the value of ARRAY_SIZE after its initial declaration.

b. The loop uses incorrect bounds; array indices start at 0 and end at one less than the length of the array. The correct loop would use i < b.length instead of i <= b.length to avoid an ArrayIndexOutOfBoundsException.

c. The syntax for accessing an element in a two-dimensional array is incorrect. Instead of using a comma, we should use two separate sets of square brackets, like a[1][1] to assign the value of 5 to the second element of the second array.