Question

What is the output of the program segment below?

final int num1 = 100;
final double num2 = 123.321;
System.out.println(num1 + " " + num2);
num1 = 200;
num2 = 321.123;
System.out.println(num1 + " " + num2);
(A) 100 123.32 1
200 321.123
(B) 200 321.123
200 321.123
(C) 100 123.321
100 123.321
(D) Error message

Answer 1

The code attempts to modify final variables, which will cause a compilation error, resulting in an error message. Thus, the correct option is (D) Error message.

Step-by-step explanation:

(B) 200 321.123

200 321.123

In this program segment, we have declared two final variables, num1 and num2, and initialized them with values. We then print their values using the System.out.println() method. After that, we change the values of num1 and num2 and print them again. The output will be:

200 321.123

200 321.123

The reason why the output is the same as before is because final variables cannot be reassigned after they are initialized. So, when we try to change their values in the second print statement, it has no effect on the original values that were assigned earlier. Therefore, the output remains unchanged.the correct option is (D) Error message.