Java quiz 35: Easy conditional statements

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Here below is an easy conditional statement’s quiz.

Java quiz 35: Easy conditional statements

Level: Easy
What happens if the following code is compiled and run?

public class MyClass
{
  public static void main(String[] args)
  {
    int x = 1;
    int y = 4;
    if(y++ == 4)
    {
      x += 4;
      if(y == x)
      {
        x += 2;
        if(x > y)
        {
          x++;
        }
      }
      System.out.println(x);
    }
  }
}
Author: Sar Maroof

Select the correct answer.

a. This program writes “1” to the standard output.
b. This program writes “7” to the standard output.
c. This program writes “8” to the standard output.
d. This program writes “4” to the standard output.
e. This program writes “0” to the standard output.

Answer explanation

  1. The first condition if(y++ == 4) returns true, because y is incrimented by one after the evaluation.
  2. The statement x += 4; increments the value of x by 4, so x = 1 + 4 = 5.
  3. The value of y is now equal to 5.
  4. The condition if(y == x) returns true. So, x += 2; increments the value of x by 2, x = 5 + 2 = 7.
  5. The condition if(x > y) returns true, because x is greater than y. So, the statement x++; increments the value of x by one, x = 7 + 1 = 8.

The correct answer is: c.

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Sar Maroof is graduated from HBO Amsterdam "higher professional education". He is a professional computer programming teacher, gives master classes and publishes technical articles. His experience with developing software started from 2001 and he has worked as a software developer for several big as well as small companies and later as a freelancer. He is the author of Java quizmaster and Build a Java application in 7 days.

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