Comparison between MVC,MVP and MVVM in Android Application Development? I often get questions that which one is better MVC,MVP and MVVM...

Reverse a string in Java in 5 Different Ways?. Ans: its very easy though and very popular question in interview.So thought of giving my...

Ans: Given two string variables a and b, swap these variables without using temporary or third variable in Java. Use of library methods...

Java.util.StringJoiner in Java 8 Example Ans:I hope everybody knows about it.i am just giving my inputs on it.So StringJoiner is a...

Covariant return types in Java Example Its a very trending interview question now so thought of sharing some of my inputs on it. ...

Facts about null in Java with example So let me tell you some interesting facts about null in Java Almost all the programming...

So what is Forward Declaration? Ans: A forward declaration is a declaration of an identifier (denoting an entity such as a type, a...

Memory Management – Mapping Virtual address to Physical addresses? Memory Management – Mapping Virtual address to Physical addresses? ...

length vs length() in Java Let me give you brief about length and length(). array.length : length is a final variable applicable for...

Yatra.com Interview Experience|The Celebrity Problem The Celebrity Problem In a party of N people, only one person is known to...

Word Break Problem Java Solution Given an input string and a dictionary of words, find out if the input string can be segmented into a...

Trending Interview Question Puzzle | Pirates and Gems Question: Seven pirates attacked the British ship and looted some rare gems from...

Check Whether a number is Duck Number or not? A Duck number is a number which has zeroes present in it, but there should be no zero...

Trending Interview Puzzle | Truth and Lie Question There are two tribes, “Lie tribe” and “Truth Tribe”. “Lie tribe”, as per the name,...

Black and White Balls Puzzle You have 20 white and 13 black balls in a bag. You pull out 2 balls one after another. If the balls are of...

Number of jumps for a thief to cross walls?. A thief trying to escape from a jail. He has to cross N walls each with varying heights...

Main thread in Java Java provides built-in support for multithreaded programming. A multi-threaded program contains two or more parts...

Find a Mother Vertex in a Graph? What is a Mother Vertex? Ans: A mother vertex in a graph G = (V,E) is a vertex v such that all other...

How to stop Singleton Pattern from Reflection, Serialization and Cloning? 1)Reflection: Reflection can be a caused to destroy singleton...

How to design a parking lot using object-oriented principles? Solution: 1) The parking lot has multiple levels. Each level has multiple...