Question

Assuming that x = 2 and y = 3, what does the following statement display? System.out.println("Value of " + x + " + " + x + " is " + (x + x));

a) Value of 2 + 2 is 4
b) Value of 2 + 2 is 22
c) Value of 2 + 2 is 44
d) Value of 2 + 2 is 6

Answer 1

Given x = 2, the Java statement System.out.println("Value of " + x + " + " + x + " is " + (x + x)); outputs a. 'Value of 2 + 2 is 4'. This is due to the parentheses causing proper arithmetic evaluation before concatenating strings.

Step-by-step explanation:

Assuming that x = 2 and y = 3, the given Java System.out.println statement displays the following output: Value of 2 + 2 is 4. This is because the expression (x + x) within the println statement is evaluated separately due to the parentheses surrounding it. Java adds the value of x to itself, which is 2 + 2, resulting in 4. Since the expression is within parentheses, it gets evaluated first before the string concatenation occurs, thereby printing the correct result of the addition instead of concatenating the string representations of the numbers.

The given statement is: System.out.println("Value of " + x + " + " + x + " is " + (x + x));

Given x = 2, substituting the value of x in the statement we get: System.out.println("Value of " + 2 + " + " + 2 + " is " + (2 + 2));

This will display: Value of 2 + 2 is 4.