Arrays in Java are a powerful way to store multiple elements of Similar type. You can read more about them here (Arrays in Java). You can also refer to the official Oracle documentation for more information.

Since the advancement in Java version there are many utility functions that has made the manipulations and working with Arrays simpler. java.util.Arrays library provide many such util functions. There is another library that provides more advance utility functions for Array manipulations org.apache.commons.lang3.ArrayUtils.

Below are the beginner as well as advanced level practice questions that involves Java Arrays concept. Although there are solutions given next to each of the question, we recommend that you come up with your own solution and only check the our solution to compare the approach.

Even though many of the below questions can easily be solved by using utility library methods, it would be better to approach with your own solution to understand how arrays are implemented internally.

Good Luck !

Exercise Questions