Map Collection Factory Java Challenge

map collection factory

In Java 9 we can use Collection Factory with List, Set, or Map. This makes code more concise and easier to read because we don’t need to add element per element in the Map.

Therefore, it’s time to try this fun Java Challenge! Are you ready for the challenge? Check this out:

It's time to improve your Java skills with this Map Collection Factory Challenge - Quiz 40707

Map Collection Factory Challenge

What will happen when running the following code?

map collection factory

That’s it challenger, keep breaking your Java limits and solving the Java Challenges!

Written by
Rafael del Nero
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4 comments
  • The is an Error in the Answer! The right answer is:
    java.lang.UnsupportedOperationException will be thrown

    Here comes the error line taken from the program execution log:
    “Exception in thread “main” java.lang.UnsupportedOperationException”

  • I made the Java challenge code and the answer was: Exception in thread “main” java.lang.IllegalArgumentException: duplicate key: no.
    The error was in line 5

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