You might know that Java passes by value, but it helps to understand why. Here's what happens when you pass mutable and immutable object references in Java.

Java stores object values in heap memory; references to the value are stored in the stack. Another way to create strings is to use the new keyword, as in the following example. String s1 = new String( ...

Abstract classes and interfaces in Java serve fundamentally different purposes. Learn the differences between these Java language elements and how to use them in your programs.

The static and final keyword combination effectively provides a more expressive way to declare unchanging variables, compared with an implementation of the const keyword in Java. In terms of fully ...