Interview

In this post, we will see about Topological Sorting in the graph. Topological Sorting is ordering of vertices or nodes such if there is an edge between (u,v) then u should come before v in topological sorting. Topological sort is possible only for Directed Acyclic Graph(DAG). If there is a cycle in graph, then there […]

In this post, we will see about "Can we overload main method in java".This is one of the most asked Core java interview questions. Yes, we can overload main method in java but when you run your program, JVM will search for public static void main(String[] args) and execute that method. Overload main method in […]

In this post, we will about Dynamic method dispatch which is also referred as run time polymorphism. Dynamic Method Dispatch Dynamic method dispatch is a technique by which call to a overridden method is resolved at runtime, rather than compile time.When an overridden method is called by a reference, then which version of overridden method […]

No, we can not override static method in java. Static methods are those which can be called without creating object of class,they are class level methods. On other hand,If subclass is having same method signature as base class then it is known as method overriding. Its execution decided at run time. Below are the reasons why […]

In this post, we will see how to find number of words in a String. Problem Find the number of words in a String. For example: There are 6 words in below String welcome to java tutorial on Java2blog Algorithm The algorithm will be very simple. Initialize count with 1 as if there are no […]

If you want to practice data structure and algorithm programs, you can go through Java coding interview questions. In this post, we will see about Doubly LinkedList implementation in java. We have already seen the implementation of singly linked list. You can consider this as an extension of Singly linked list.It is quite complex to implement […]

In this post, we will see top Java technical interview asked in the Core Java interview.I have covered a lot of interview question on Java programming. Here is list of other java interview question you might find useful. Core java interview questions Java Collections interview questions Java String interview questions OOPs interview questions in java […]

If you want to practice data structure and algorithm programs, you can go through 100+ java coding interview questions. In this post, we will see about Sorting algorithms in java. A Sorting algorithm is an algorithm which puts collection of elements in specific order. For example: You want to sort list of numbers into ascending order […]

In this post, we will see top 15 Spring Boot interview questions with answers.If you want to read more about Spring boot, you can go through Spring boot tutorial. If you are looking for below queries then this post will help you as well. Spring boot interview questions for 3 years experience Spring boot interview […]