Java puzzle 06: Controlling loops

  Quizzes     Assignments     Puzzles     Easy exercises     Required knowledge  
< Java Puzzles   Green = Easy,  Blue = Normal,  Red = Hard
Select    01   02   03   04   05   06   07   08   09   10   11   12   13   14   15 
 16   17   18   19   20   21   22   23   24   25   26   27   28   29   30   By title 
>

In this Java puzzle we try to control the results of a loop.
If you compile and run this program, it writes 123456 to the standard output.
By adding only one statement to the line 9, the program will write 1346 to the
standard output. What is that statement? More than one solution is possible!

Java puzzle 6: Controlling a loop

Level: Normal

public class Loop
{
  public static void main(String[] args)
  {
    for (int i = 1; i < 7; i++)
    {
      if (i == 2 || i == 5)
      {
        // add your statement here!
      }
      System.out.print(i);
    }
  }
}
  Author: Sar Maroof

Answer explanation

By adding the label continue; the program will skip the values 2 and 5 of the variable i.
Therefore, the program writes 1346. Remeber that by programming, there might be different methods to achieve the same goal. Here you can also use the statement i++; to get the same output.

public class Loop
{
  public static void main(String[] args)
  {
    for (int i = 1; i < 7; i++)
    {
      if (i == 2 || i == 5)
      {
        continue;
      }
      System.out.print(i);
    }
  }
}

 





Sar Maroof is a professional software development teacher, gives master classes and publishes technical articles. He is also an expert software developer and worked for several big as well as small companies and later as a freelancer.

 Subscribe to Sar Maroof's RSS feeds!
 Mail this page to a friend!
 Bookmark this page!

Leave a Reply

Your email address will not be published. Required fields are marked *