Java Puzzles

Recent Articles

• Java Puzzle: Class Name

  

  Let us directly jump into the puzzle. Following code is a Java puzzle, read and guess the output. Then run, see the result and try to reason ...

  January 10th, 2016

• Java List size Puzzle

  This is a Java puzzle involving the Collection List interface. This is a Java beginner level puzzle and will help understand how the size wo ...

  September 23rd, 2014

• Java Puzzle: Floating Point Precision

  

  This is a Java puzzle to pep up our floating point arithmetic skills. Guess the output for the following Java puzzle program, public class P ...

  July 11th, 2014

• Java Puzzle: Commented Code Compiles

  

  This one is a nice Java puzzle. If you know it already then its very cheap else it will be surprising. These puzzles come out of SCJP prepar ...

  November 21st, 2013

• Java Puzzle: unreachable statement

  

  This is an interesting puzzle to test our understanding on java compiler. What happens when we compile below code blocks? CODE A: public voi ...

  October 9th, 2012

• Java’s toLowerCase() has got a surprise for you!

  

  Have you ever encountered a surprise while using toLowerCase()? This is a widely used method when it comes to strings and case conversion. T ...

  May 9th, 2010