Java

URL: https://www.progressiverobot.com/longest-palindrome-substring-string-java/ Longest palindrome substring in a string is a very common [java interview question](/community/tutorials/java-interview-questions). To find out the longest palindrome in [String](/community/tutorials/java-string), first of all, we need to identify the logic to do it. Longest Palindrome Substring in a String Algorithm The key point here is that from the mid of any palindrome string […]

URL: https://www.progressiverobot.com/oops-concepts-java-example/ Object-Oriented Programming Concepts are very important for programming. Without having an idea about OOPS concepts, you will not be able to design systems in the object-oriented programming model. What is Object-Oriented Programming Model? The object-oriented programming model revolves around the concept of Objects. What is an Object? An object is an instance of […]

URL: https://www.progressiverobot.com/string-char-array-java/ Sometimes we have to convert String to the character array in java programs or convert a string to char from specific index. String to char Java  String class has three methods related to char. Let's look at them before we look at a java program […]

URL: https://www.progressiverobot.com/what-is-abstraction-in-oops/ Abstraction is one of the core [concepts of Object-Oriented Programming](/community/tutorials/oops-concepts-java-example). Abstraction defines a model to create an application component. The implementation of abstraction depends on the language-specific features and processes. 1. What is Abstraction? Abstraction is the process of hiding the internal details of an application from the outer world. Abstraction is used […]

Welcome to Core Java Quiz. Java is an object-oriented programming language. Core Java Quiz In this quiz, you will be tested on Core Java basics and OOPS concepts. There are some code snippets too to test your basic Java coding skills. Some of the questions have multiple answers. You can click on the "Reveal Answer" […]