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INTRODUCTION OF JAVA

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INTRODUCTION OF JAVA

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  1. INTRODUCTION OF JAVA Java is a widely-used, high-level, object-oriented programming language developed by Sun Microsystems (now owned by Oracle) in 1995. Designed to be platform-independent, Java allows developers to write code that can run on any device that supports the Java Virtual Machine (JVM), making it one of the most popular languages for cross-platform applications. https://excellenceacademy.co.in/java-training-in-chandigarh/

  2. TYPES OF JAVA Java has evolved into different types or editions to cater to various development needs. Here are the main types of Java: • 1. Java Standard Edition (Java SE) • Description: The core platform for general-purpose applications. • Scope: Provides the essential libraries and APIs for building desktop and server applications, such as networking, I/O, data structures, and more. • 2. Java Enterprise Edition (Java EE) • Description: Used for large-scale enterprise applications. • Scope: Includes additional libraries for web services, server-side scripting, enterprise-level transactions, and distributed computing (e.g., Servlets, JSP, EJB). • 3. Java Micro Edition (Java ME) • Description: Tailored for mobile devices and embedded systems. • Scope: A subset of Java SE designed to run on resource-constrained devices like smartphones, smart cards, and IoT devices. • 4. JavaFX • Description: A platform for creating rich internet applications (RIAs) with modern user interfaces. • Scope: Used to develop desktop applications with rich graphics and media features, including animations, 2D/3D graphics, and multimedia.

  3. ADVANTAGES OF JAVA • 1. Platform Independence • Advantage: Java code is compiled into bytecode that runs on any device with a Java Virtual Machine (JVM). This means you can write Java programs once and run them anywhere, irrespective of the underlying hardware or operating system. • 2. Object-Oriented Programming (OOP) • Advantage: Java’s object-oriented nature promotes modularity, reusability, and maintainability. Concepts like classes, objects, inheritance, and polymorphism make it easier to manage and structure code. • 3. Robust and Secure • Advantage: Java provides strong memory management through automatic garbage collection, which helps in avoiding memory leaks. Its security features include a security manager and bytecode verifier that protect against malicious code. • 4. Rich Standard Library • Advantage: Java comes with a comprehensive set of standard libraries and APIs that support a wide range of functionalities, including data structures, networking, I/O operations, and more.

  4. BENEFITS OF JAVA • 1. Cross-Platform Compatibility • Benefit: Java's "Write Once, Run Anywhere" (WORA) capability allows applications to run on any device with a Java Virtual Machine (JVM), regardless of the underlying hardware or operating system. • 2. Object-Oriented Structure • Benefit: Java’s object-oriented approach enhances code reusability, modularity, and maintainability. It helps in organizing code into objects and classes, making it easier to manage and update. • 3. Rich Standard Library • Benefit: Java comes with a comprehensive set of libraries and APIs that simplify the development process by providing pre-built functions and tools for various tasks, including data handling, networking, and user interface design. • 4. Strong Memory Management • Benefit: Java’s automatic garbage collection helps manage memory efficiently by automatically reclaiming unused memory, reducing the likelihood of memory leaks and improving application performance. https://excellenceacademy.co.in/java-training-in-chandigarh/

  5. SCOPE OF JAVA • 1. Web Development • Scope: Java is used to build dynamic web applications and services through technologies like Servlets, JavaServer Pages (JSP), and JavaServer Faces (JSF). Frameworks such as Spring and Hibernate enhance web application development. • 2. Enterprise Applications • Scope: Java Enterprise Edition (Java EE) provides a robust platform for developing large-scale enterprise solutions, including customer relationship management (CRM) systems, enterprise resource planning (ERP) systems, and business process management (BPM) systems. • 3. Mobile Development • Scope: Java Micro Edition (Java ME) is used for developing applications on mobile devices. Although Android development now primarily uses Kotlin, Java remains a key language for Android development and has significant influence in the ecosystem. • 4. Desktop Applications • Scope: Java is used to create cross-platform desktop applications with graphical user interfaces (GUIs) using JavaFX or Swing. These applications run on multiple operating systems with minimal modifications. • 5. Big Data Technologies • Scope: Java is employed in big data technologies and frameworks such as Hadoop and Apache Spark for processing and analyzing large datasets. https://excellenceacademy.co.in/java-training-in-chandigarh/

  6. SALARY PACKAGE • 1. Entry-Level Java Developer (0-2 years experience) • Average Salary: ₹3 - ₹6 lakhs per annum • Freshers or those with minimal experience typically start within this range. • 2. Mid-Level Java Developer (2-5 years experience) • Average Salary: ₹6 - ₹12 lakhs per annum • Developers with a few years of experience and a solid understanding of Java frameworks and technologies can expect to earn within this range. • 3. Senior Java Developer (5-10 years experience) • Average Salary: ₹12 - ₹20 lakhs per annum • Senior developers with extensive experience, expertise in Java technologies, and possibly team lead responsibilities can earn higher salaries. • 4. Lead Java Developer/Technical Architect (10+ years experience) • Average Salary: ₹20 - ₹35 lakhs per annum • Professionals in lead or architect roles, responsible for overseeing projects and designing complex systems, can command higher packages. • 5. Java Development Manager/Team Lead • Average Salary: ₹15 - ₹30 lakhs per annum • Managers or team leads overseeing Java development projects typically receive salaries in this range, depending on their level of responsibility and the size of the team. • 6. Java Consultant/Expert • Average Salary: ₹25 - ₹50 lakhs per annum

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