Diagrams for Understanding Java
A diagram is sometimes worth 1000 words. The following diagrams are from Java tutorials on Program Creek, they have received the most votes so far. Hopefully, they can help you review what…
What does a Java array look like in memory?
n Java, an array stores either primitive values (int, char, ...) or references (a.k.a pointers) to objects. When an object is created by using "new", memory space is allocated in…
ArrayList in Java
ArrayList is a part of collection framework and is present in java.util package. It provides us dynamic arrays in Java. Though, it may be slower than standard arrays but can be helpful…
Java 101: Interfaces in Java
Java interfaces are different from classes, and it's important to know how to use their special properties in your Java programs. This tutorial introduces the difference between classes and interfaces,…