Month: March 2023

In this post, we will learn SOLID principles in more detail with java example code SOLID Principles are set of guidelines to help developers to follow and create applications that…

Java 8 introduced the Stream API, which allows you to perform functional-style operations on collections of data. Here are some examples of using the Stream API: 1. Filtering a list…

Java is a programming language and computing platform first released by Sun Microsystems in 1995

1. What are nested classes in java? Class declared with in another class is defined as nested class.There are two types of nested classes in java.1) Static nested class :…

We can implement a custom class that behaves like an array by creating a class that has an array as a private field, and implements the necessary methods to access…

What is the difference between an interface and an abstract class in Java? In Java, an interface and an abstract class are both used to define a contract for classes…

What is serialization in java? Serialization is the process of converting an object in to bytes, so that it can be transmitted over thenetwork,or stored in a flat file and…

In Java, a String is an immutable object that represents a sequence of characters. It means once a String is created, its value cannot be changed, any operation that appears…

In the context of Java 8 streams, a pipeline refers to a sequence of operations that are performed on a stream. The pipeline is created by chaining together intermediate operations,…

you might be facing the below exception in the recent versions of Spring boot that class file has wrong version 61.0, should be 52.0 Exception: Failed to execute goal org.apache.maven.plugins:maven-compiler-plugin:3.10.1:compile…