Spring Boot Interview Questions
1. What is Spring Boot? Spring Boot is a popular open-source framework for building and deploying production-ready, standalone, and web-based applications in the Java ecosystem. It is built on top…
Static in Java
In Java, the keyword "static" is used to declare a variable, method or block that belongs to a class and not to an instance of the class. The static keyword…
Difference between C++ and Java
C++ and Java are two of the most popular programming languages used in the software development industry. While both languages share certain similarities, they are vastly different in many aspects.…
Wrapper class in Java
In Java, a wrapper class is a class that provides a way to represent primitive data types (int, char, boolean, etc.) as objects. The Java language specification requires that every…
Super keyword in Java
In Java, the super keyword is used to refer to the immediate parent class of a subclass. It is used to access the members (methods, variables, and constructors) of the…
Java instanceof operator
The instanceof operator is a commonly used operator in Java. It is used to check whether an object is an instance of a particular class or a subclass of that…
Convert String to int in Java
In Java, converting a string to an integer is a common operation. This is often necessary when parsing input from a user or a file, where the input is typically…
Fibonacci Series in Java
The Fibonacci series is a sequence of numbers that starts with 0 and 1, and each subsequent number is the sum of the previous two numbers. This sequence was discovered…
Final in Java
In Java, the keyword "final" is used to declare a constant, a variable, or a method that cannot be modified or overridden. This keyword is an important feature of Java…
Convert int to String in Java
In Java, it is often necessary to convert an integer value to a string for various reasons, such as displaying it on a user interface or writing it to a…