Java

We use Synchronization in Java whenever we want only thread to access particular resource at a particular time. If more than 1 thread tries to […]

No. Constructor can’t have any return type. Constructors are used to return the object of the class. If you see above example. We have created […]

There is no major difference between StringUtils.isEmpty and StringUtils.isNotEmpty. They are just reciprocal of each other. Suppose you have a string str whose value is […]

I didn’t find any reason of adding abstract keyword with class name when we have already added abstract keyword with the corresponding method. But there […]

Let me first tell you the meaning of using <>. Whenever we are creating any type of List, Map or Set we use <> with […]

Firstly let me explain what is overriding. Overriding means to give new implementation to a particular piece of code. Suppose we have a piece of […]

We can’t create object of interfaces because of the reason that : Interface is basically a complete abstract class. That means Interface only have deceleration […]

Someone asked me this Question that how to swap 2 String variables. This is quiet simple by taking 3rd variable. But he said no i […]

If you are having Java Developer experience of around 2–3 years then you must have good exposure of these skill set : Core Java Advance […]