Chapter 4, Problem 1RQ

What is the output of the following code segment? $\begin{array}{l}\text{int a }=\text{ 3},\text{ b }=\text{ 4};\\ \text{if}\left(\text{a }==\text{ b}\right);\\ \text{Write}\left("\text{X}"\right);\\ \text{Write}\left("\text{Y}"\right);\end{array}$

1. X
2. Y
3. XY
4. nothing

Program Plan Intro

To find:

Output of the given code segment.

Program Description Answer

b. Y

Explanation of Solution

In the given code in the first line, two int variables a and b have values as a = 3 and b = 4. Immediate next statement is If block statement.

If a statement is using equal to operator (==) to compare the value of both operands a and b .Equal to the operator will check if the operands on both sides of it are equal or not.

The operator will return false if operands are not equal and return true in case, they are equal.

Since a and b are not equal so if block will return false and hence the immediate next statement after it will not get executed.

The statement after the if block i.e. WriteLine("Y"); will get executed and hence the output will be Y.