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PriorityQueue Java Example

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In this article, we will discuss what is the PriorityQueue in Java – , we will create a java priorityqueue example , and we will analyze java.util.PriorityQueue which extends the java.util.AbstractQueue class and implements the Serializable interface. You can also check the Java Queue Example in the following video: Scanner Java Example – Video 1. Introduction An unbounded priority queue ...

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ArrayList to Array Java Example

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In this tutorial, we will look at various ways to convert ArrayList to array java and we will discuss the efficient approach for it. 1. ArrayList to Array in Java The first step for our example is to create an ArrayList List numbers = new ArrayList(); final int endRange = 100000000; IntStream.range(0, endRange).forEach(value -> { numbers.add(value + 1); }); We ...

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Java Import Keyword Example

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In this example, we will learn about the Java Import keyword. We will talk about Java packages and their types and what problems an import keyword solves when programming in Java. TipYou may skip the packages section and jump directly to the Import keyword section below. 1. Packages A java package is used to group related types(classes, interfaces, enumerations, and ...

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Introduction to AWS Lambda

Welcome readers, in this tutorial, we will see an introduction to AWS lambda and how to configure a simple function using java. 1. Introduction AWS Lambda is a service that helps to compute the code without any server. It is a kind of serverless framework because – It manages your code as well the infrastructure It supports multiple languages (such ...

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Garbage Collection in Java

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In this article, we will cover garbage collection in Java. We’ll look at the Garbage Collector and discuss the conditions that make an object eligible for collection. We’ll also explore the topics of object reachability and object cleanup. Finally, we’ll show how to call the garbage collector in our code. You can also check this tutorial in the following video: ...

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Java Implements Keyword Example

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1. Introduction This article introduces the implements keyword, the need, and its usages in Java. It starts with a short introduction and explains it with the help of an example. 2. What is the Java Implements keyword Java is an Object-Oriented Programming language. Like any other OOP language, Java supports inheritance, the essential feature for code re-use. Java does not ...

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Event-Driven Data Management for Microservices

In this tutorial, we will learn about Event-driven microservices architecture and explore a simple Producer-Consumer to illustrate the practical implementation up to an extent. 1. Introduction Ever wondered what Event-driven pattern is about? How generating events help to decide or trigger the next set of events? Well to explore this niche area we first need to understand what an event ...

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UML Diagram Java Example

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In this article, we will show you a UML Diagram Java Example. First of all, we will analyze what is UML of a class in java and what is the use of them. Last but not least we will talk about the types of diagrams and some examples. 1. Introduction A UML diagram is a diagram based on the UML ...

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What is Hibernate in Java

In this article, we will explore what is Hibernate in Java, through a full tutorial. We are going to learn its features, pros, and cons. Database integrations are an integral part of enterprise applications. Java provides various ways to interact with databases. The most basic and low-level way is to use JDBC, where we need to write SQL queries. As ...

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Default Constructor Java Example

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In this post, we feature an example of the Default Constructor in Java. 1. Introduction When the Java compiler compiles the Java source code (.java) into the Java byte code (.class), it will create a public no-argument constructor for the class if it has no constructor defined. This public no-argument constructor is called a default constructor. Its implementation body only ...

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