Answer to why method overriding is called runtime polymorphism in java is because the methods get resolved at the Run-Time. In simple words, when you
Category: Core Java Interview Questions
List of Interview Questions on Java for freshers and experienced candidates asked in technical job interviews in IT Industries. This list includes interview questions asked to freshers, 2,3 and 5 years etc. experience professionals | Only Real.
This section contains technical java interview questions and answers for freshers and experienced on java Polymorphims, Java OOPs concept Inheritance, Interface, abstract class, abstraction and encapsulation, classes and objects etc. with impressive answers and explanation. In fact, interview question on many topics I have provided that you should read or brush up that help crack java technical java interviews quickly.
Let’s see some examples where use of java static methods are mandatory in the programs. Generally, we use static method where we want to call
Answer to why we need double check locking in singleton class in Java with thread program example. Let’s understand first what does the double checking
We create immutable class in java by making the class fields final and private, and by providing getter setter method, and returning new object with
Answer to what to choose between abstract class and interface if both contain only abstract methods. This is the frequently asked technical interview question. Here
What is method signature in java ? – Method signature in java includes only method name and parameters. Method return types are not included in
Use of volatile keyword in Java – The volatile keyword is used to declare a variable volatile, so, the variable can be accessed directly from
Interview Question – Can we overload main method in java programs, for example in below class Sample, public static void main(String[] args) is given, that
Abstract keyword is used to create an abstract class and abstract methods in java programs. Abstract class: Abstract class in java is used as a
Methods of Object class in java with brief descriptions – The java.lang.Object class is the super class of all classes whether the class is predefined or user