First Code School Blog

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Exceptions in Java with Examples

In programming, an exception refers to an event that occurs during program execution, causing a disruption in the normal flow of instructions. Java offers a robust mechanism for handling exceptions, which is crucial for...

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What is Multithreading in Java

Multithreading is a technique in programming that allows multiple threads to execute concurrently within a single process. It is an essential concept in Java, a popular programming language used for developing various applications. Multithreading...

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Packages in Java with Examples

Java packages are a way of organizing and grouping related classes and interfaces together. They provide a mechanism to create a namespace within the Java language, which helps in avoiding naming conflicts between classes....

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Java Collections Framework

Collections in Java refer to a group of objects that are stored and manipulated as a single unit. It provides a framework for storing, organizing, and managing groups of related data. Collections are a...

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Serialization and Deserialization in Java

Java serialization is the process of transforming a Java object into a stream of bytes for file storage or network transmission. Serialization is important in Java because it enables the communication of objects between...

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Java implements Keyword

Java is a popular programming language that has gained significant popularity over the years due to its versatility and flexibility. One of the key features of Java is the “implements” keyword, which allows developers...

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Java extends Keyword

Java is a popular programming language that allows developers to build complex and robust applications. One of the key features of Java is its ability to use inheritance to extend the functionality of existing...

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Abstract Data Types in Java

In computer science, an Abstract Data Type (ADT) is a conceptual model that defines the behaviour of a data type independent of its implementation. ADTs are a fundamental concept in programming as they provide...

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How to iterate a Map in Java

Java Map is a key-value pair-based collection that stores data in the form of a key-value pair. Each key in the Map is unique and cannot be duplicated. The value can be accessed using...

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Java ExecutorService

ExecutorService is a class in Java that provides a way to manage and execute threads. It allows us to decouple the task submission from the task execution, making our code more modular and scalable....