Java

Java Collection Interview Questions | Let us some important Java Collection interview questions that are most commonly asked. Also see:- Java 8 Interview Questions 1. Explain Collection Hierarchy. java.util.Collection is the root of the Java collection framework and most of the collections in Java are inherited from this interface except the Map interface. java.util.List: java.util.Set:- […]

Java 8 Interview Questions | We will see the important questions on Java 8 including why Java 8 was introduced. What are functional interfaces, lambda expressions, method references, and many more? Also see:- Java 8 Stream All Operations with Examples Java 8 QA 1. Why Java8 was introduced? What was the main agenda behind the

Apache Kafka Introduction | Apache Kafka is used to send continuous data between the producer and consumer using a mediator. If multiple systems want to communicate with each other then there will be multiple permutations and combinations. Kafka helps here as a mediator. Kafka Software Overview Assume we have a producer application having some data.

Need of Build Tools in Java | What is the meaning of building the Application/Project? Keeping the application or project ready for execution is called building the application/project. It involves the following operations:- Performing all the above operations called as build process. We may have to repeat it multiple times until satisfactory results come. Instead

Gradle Wrapper | Gradle Wrapper let’s run the Gradle project without installing the Gradle software into our system. It can dynamically download the Gradle at runtime and then run the application. In Arithmetic.java:- In build.gradle:- Execute gradle wrapper command in CMD from the project directory which will generate gradlew and gradlew.bat files in the project

Gradle Tutorial | Gradle is an open-source build tool. Gradle’s Main Features are:- We will see Gradle from two different angles:- Download and install the Gradle and set the Path:- Install Gradle Guide. Verify the Gradle installation:- gradle -v. Technical Features of Gradle DSL Groovy Basics Before going ahead let us see DSL (domain-specific language)

Logging using Log4J in Java | Based on all the setups where the application is running is called environment. There are different types of environments:- When we run the application then it gives various types of messages in the console in the IDE (STS/Eclipse) like success, error/exception, and warning messages. If suddenly any problem arises

Mockito With Examples | Mockito is built on the top of JUnit. It is given to perform unit testing by mocking the local dependent or external dependent objects. Example:- The service class has a dependency on the DAO class and the DAO class communicates with the database. The service class contains business logic and the