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Author Archives: Yatin

Yatin
The author is graduated in Electronics & Telecommunication. During his studies, he has been involved with a significant number of projects ranging from programming and software engineering to telecommunications analysis. He works as a technical lead in the information technology sector where he is primarily involved with projects based on Java/J2EE technologies platform and novel UI technologies.

Java System.out.println() Example

Hello readers, in this tutorial we will learn the Java System.out.println() statement. 1. Introduction In Java, System.out.println() is a statement that prints the output to the console. In Java, this complete statement is divided into three parts, System is a final class in the java.lang package. This class is responsible to provide input/output streams, access to the environment variables etc ...

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Hibernate Many to One Mapping Example

Welcome readers, in this tutorial, we will discuss the Hibernate many to one relationship mapping. As the name suggests, Many to One entity-relationship shows the association of multiple entities with a single entity. 1. Introduction Object-Relational Mapping or ORM is the programming technique to map application domain model objects to the relational database tables Hibernate is a Java-based ORM tool ...

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Java Extends Keyword Example

Hello readers, in this tutorial, we will learn the Java extends keyword. 1. Introduction In Java, a subclass can extend the properties of its parent class by using the extends keyword. In Java, java.lang.Object is the parent class of all classes. Do note, this is implicit and does not require to be specified explicitly A class can only extend a ...

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SQL Copy Table Example

Welcome readers, in this tutorial, we will learn how to create an exact copy of an existing table in the same or different database. 1. Introduction Cloning or Copying a table is an important phenomenon that helps developers rescuing disaster recovery situations or to perform something without affecting the original table. To start with this tutorial, we are hoping that ...

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SQL Constraints Example

Welcome readers, in this tutorial, we will understand the different SQL Constraints that maintain the data integrity inside a database table. 1. Introduction SQL Constraints are the restrictions that help maintain the data integrity inside a database table. Constraints can be divided into column level (i.e. limiting only column data) or table level (i.e. limiting whole data in a database ...

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Java 8 Functional Interfaces Introduction Example

Hello readers! In this tutorial, we will learn the amazing feature of Java 8 Functional Interfaces. 1. Introduction To achieve the benefits of functional programming in Java, JDK developers introduced Functional Interfaces/Single Abstract Method (SAM) Interfaces in Java 8 programming. A functional interface is an interface that has only one abstract method A functional interface can have multiple default and ...

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Java 8 Lambda Expressions Introduction Example

Hello readers! In this tutorial, we feature a comprehensive article on Java 8 Lambda Expressions.  1. Introduction To achieve the benefits of functional programming in Java, JDK developers introduced Lambda Expressions in Java 8 programming. A lambda expression is a nameless function which does not have the name, return type, and access modifiers A lambda expression instance can be assigned ...

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SQL Clone Database Example

Welcome readers, in this tutorial, we feature a comprehensive article in SQL clone database. Specifically we will understand how to clone an existing database and its content. 1. Introduction In SQL, Database Cloning represents a feature of ensuring backup of all or specific databases. The feature is implemented for purposes, Data restore that was mistakenly modified or deleted For application ...

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SQL Primary Key Example

Welcome readers, in this tutorial, we will understand the SQL Primary Key column that uniquely identifies a tuple in the database table. 1. Introduction SQL Primary Key is a column or multiple columns that uniquely identify a tuple in the database table. It contains unique values but cannot have null or duplicate It consists of multiple columns known as a ...

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Spring Boot HATEOAS in REST API Example

Welcome readers, in this tutorial, we will implement the HATEOAS principle to REST resources in a spring boot application. 1. Introduction Spring Boot is a module that provides rapid application development feature to the spring framework including auto-configuration, standalone-code, and production-ready code It creates applications that are packaged as jar and are directly started using embedded servlet container (such as ...

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