Tag Archives: final

What are static variables? Why it is used? What is it’s use? – A Common Interview Question.

By | November 7, 2014

The static keyword is used in java mainly for memory management. We may apply static keyword with variables, methods, blocks and nested class. The static keyword belongs to the class than instance of the class. The static can be: variable (also known as class variable) method (also known as class method) block nested class Static variable If you… Read More »

How to move a body manually in Box2D? or Give a force to a body in Box2D, iPhone.

By | April 28, 2012

This is a sample code to move a body in Box2D . First you have to make a body with variable name “moving_rec” and call the below function in a schedular at regular intervals. -(void) moveBody{ b2Vec2 force = b2Vec2(0,0); force = b2Vec2(0,3); //Giving the x an y to negative will move the body in opposite direction. moving_rec->SetLinearVelocity(force);… Read More »

Preventing Overriding in Java

By | February 25, 2011

Methods and variables can be ‘override’ in subclasses. (Yes, it’s a good feature too!). But what if we don’t want to ‘override’ our Methods and Variables in Java? It’s simple… Declare them using the keyword ‘final’ as modifier. That’s it. eg: So the value of myVariable can never be changed any way. Also for Classes/Methods. eg: It will… Read More »