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1. Java Course In Delhi
Introduction Of Java
Java is a widely used, object-oriented, high-performance programming language originally developed by
Sun Microsystems in the mid-1990s. It is designed to be platform-independent, allowing developers to
write code that can run on any device with a Java Virtual Machine (JVM). The key features that have
contributed to Java's popularity include its portability, security, simplicity, and the extensive set of
libraries and frameworks available for developers.
Here are some key aspects of Java:
Java Course In Delhi

2. 1. Platform Independence:
Java programs are compiled into an intermediate form known as bytecode, which can be executed on
any device with a JVM. This "write once, run anywhere" philosophy has made Java a popular choice for
developing cross-platform applications.
2. Object-Oriented:
Java is based on the object-oriented programming (OOP) paradigm, which promotes the use of objects
and classes for structuring code. This approach makes it easier to manage and scale code, promoting
modularity and code reuse.
3. Security:
Java incorporates various security features to protect systems from harmful activities. The Java Virtual
Machine includes a security manager that enforces a set of access controls to prevent unauthorized
access to system resources.
4. Robust and Reliable:
Java is designed to be robust and reliable by eliminating error-prone situations. It includes features like
automatic memory management (garbage collection) and strong typing to reduce the likelihood of
runtime errors.
5. Multi-threading:
Java supports multithreading, allowing developers to create concurrent applications that can perform
multiple tasks simultaneously. This is crucial for building responsive and efficient applications.
6. Rich Standard Library:
Java comes with a comprehensive standard library that provides a wide range of pre-built classes and
functions for various tasks, from basic input/output to networking, database connectivity, and more.
This helps developers save time and effort in coding common functionalities.
7. Community Support:
Java has a vast and active community of developers who contribute to its growth. The community-
driven nature of Java has led to the development of numerous libraries, frameworks, and tools that
enhance the language's capabilities.
8. Popular Frameworks:

3. Java is widely used for building enterprise-level applications, and several frameworks, such as Spring,
Hibernate, and Apache Struts, have been developed to simplify and expedite the development process.
9. Versatility:
Java is used in a variety of application domains, including web development, mobile app development
(Android applications are primarily written in Java), enterprise software, scientific computing, and more.
Overall, Java's versatility, platform independence, and rich ecosystem make it a prominent language in
the software development landscape.
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