This is a Java class that enables the viewing of arrays as a List and provides methods to search and filter the elements. When the reference of the array is is null it throws a NullpointerException ...

This is the most basic and easiest method to print out elements from a HashMap. Pass the HashMap reference to the print line method and the HashMap will output the key-value of the elements enclosed ...

In this quick tutorial on how the Java HashMap works internally, you'll learn the following aspects: The basic syntax of the Java HashMap. How ... You can always do a system.out.println and print out ...