Java Tutorials
  • Introduction to Java
    • What is Java?
    • History and Features of Java
    • Java Virtual Machine (JVM) and Bytecode
    • Why Java?
  • Setting up Java Development Environment
    • Installing Java Development Kit (JDK)
    • JDK vs JRE
    • Setting up IDE (Eclipse, IntelliJ, NetBeans) or Text Editor (VS Code, Sublime Text)
  • Basic Java
    • First Java Program : Hello World
    • Variable
    • Data Type
    • Constant
    • Date and Format
    • Operator
    • Condition
    • Looping
    • Function
    • Variadic Function
    • Enums
    • Array
    • Collection
    • Exception and Exception Handling
    • Naming Convention
  • Object Oriented Programming (OOP)
    • Classes and Objects
    • Inheritance and Polymorphism
    • Encapsulation and Abstraction
  • File Handling
    • Reading and Writing Binary File
    • Reading and Writing Text File
    • Serialization and Deserialization
  • Multithreading
    • Creating and Running Threads
    • Synchronization
    • Thread Pools and Executors
  • Collections API
    • Sorting and Comparable
    • Searching and Comparator
  • Java Database Connectivity (JDBC)
    • Introduction and Life Cycle
    • Connection to Database (MySQL)
    • Downloading JDBC Drivers for Various Databases
    • Maven and Gradle JDBC Drivers for Various Databases
    • JDBC URL Formats
    • Statement and PreparedStatement
    • CallableStatement
    • Selecting Data using JDBC
    • Inserting Data using JDBC
    • Updating Data using JDBC
    • Deleting Data using JDBC
    • Invoking Function and Stored Procedure using JDBC
  • Lambda
    • Introduction to Lambda Expressions
    • Functional Interface
    • Filtering, Mapping, Reducing
    • Lambda Expressions in Collections
    • Method References
    • Functional Programming Concepts
    • Stream API
    • Error Handling in Lambda Expressions
    • Optional in Functional Programming
    • Parallel Processing with Lambda
    • Functional Programming Patterns
    • Advanced Topics in Lambda Expressions
    • Best Practices and Design Patterns
    • Real-World Use Cases and Examples
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  1. Introduction to Java

Why Java?

Java: A Time-Tested Technology Powering Modern Innovation

Java, despite its age, remains a stalwart force in the tech world, continually evolving to meet contemporary demands. As of the time of writing, Java has reached version 21, a testament to its enduring relevance and ongoing development. Several tech giants, including Twitter, Netflix, Amazon, Alibaba, Google, and Spotify, rely on Java as the backbone of their systems, underscoring its reliability and efficiency.

Moreover, the realm of Big Data owes much of its prowess to Java. Leading technologies like Apache Hadoop, Apache Spark, ElasticSearch, Apache Kafka, and Apache Cassandra are all Java-born innovations. Java's robustness and flexibility have played a pivotal role in shaping these powerful tools that handle vast amounts of data efficiently and reliably.

In the mobile landscape, Java's influence extends to Android development. Android applications run on Dalvik VM, a modification of Java Virtual Machine (JVM). Java and Kotlin, both being officially supported languages, empower developers to create cutting-edge Android applications, ensuring a rich user experience and robust functionality.

Considering these facts, choosing Java as a technology to master is undeniably worthwhile. Its prevalence across industry giants, its role in shaping Big Data technologies, and its prominence in the Android ecosystem ensure a wealth of job opportunities. Embracing Java means tapping into a vast and enduring landscape of employment prospects, making it a compelling choice for aspiring developers and tech enthusiasts alike.

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Last updated 1 year ago