There are three differences between an interface and an abstract class: you can implement multiple interfaces at the same time, but only extend one class, an abstract class is allowed to contain implementation (non-abstract methods, constructors, instance initializers and instance… Read More ›
Java
Call By Reference and Call By Value
Java always makes a copy of the argument and passes the copy. The called method has a local copy of the data. If the method changes the data it changes the copy, so the original value is not changed. When… Read More ›
Overriding v/s Hiding
Many people have heard that you can’t override a static method. This is true – you can’t. However it is possible to write code like this: class Foo { public static void method() { System.out.println(“in Foo”); } } class Bar… Read More ›
Java Technology: Part-1
Java Technology: Java technology is both a high-level, object-oriented programming language and a platform. Java technology is based on the concept of a single Java Virtual Machine (JVM) — a translator between the language and the underlying software and hardware…. Read More ›
Java Programming Style Guide
Introduction The Java language gives you all the room you need to write code that would be very difficult for others to understand. Java also permits you to write code that is very easy to understand. Most development teams would… Read More ›
