Java is an concurrent, class-based, object-oriented and high-level programing language. The Java syntax is similar to C++ , but java is more strictly object oriented then C++.
It is intended to let application developer "write once, run anywhere" (WORA), meaning that compiled Java code can run on all platforms that support Java without the need for recompilation. Java runs on a variety of platforms, such as Windows, Mac OS, and the various versions of UNIX.
History of Java
Java is a popular programming language is developed by Sun Microsystems under the supervision of James Gosling during the early 1990s and Java 1.0, which is first version of java and it was released in 1995. Initially, it was called a project ‘Oak’ later on it's name changed to java. Later the Sun Microsystems was acquired by Oracle company.
What is Core Java?
Core Java is the standard edition of Java, also known as J2SE.
What is Advanced Java?
Advanced Java is the enterprise edition of Java, also known as J2EE.
Features of Java
- Object-Oriented language :- every things in java is an objects.
- Security :- Java is an one of the most secure language in the world.
- It is "WORA" means Write Once Run Anywhere. This concept of write once, run anywhere was used as a slogan to promote Java’s cross-platform abilities
- Platform independent
- Multithreaded :- With Java's multithreaded means a program can performs multiple tasks simultaneously.
- Dynamic :- java can loads the class files at run time. Anything that happens at run time is an dynamic nature.
- Interpreted :- Java byte code is translated to native machine instructions.
What are the most important concepts of Core Java?
Well, every language is divided into three parts (basic, intermediate, advanced) for learners. For Core Java, the division is somewhat like this.
- Beginner Level: OOPS, Nested Class vs Inner Class, Exception and Error Handling, Multithreading
- Intermediate Level: Java Foundation Classes (JFC):AWT, Swings, Drag and Drop and Java 2D class libraries, Java Beans, Applet, Servlet, Database Connectivity: JDBC Drivers
- Advanced Level: Generics, Collection Framework, Networking in Java, MVC
What are the most important concepts of Advanced Java?
Here comes up the topics based on the difficulty levels.
- Basic: Applet, Servlet, Database Connectivity: JDBC Drivers
- Intermediate: Java Server Pages (JSP), JSF (Java Server Faces), Java Beans/ Enterprise Java Beans, Framework (any one of Spring, Hibernate, Struts, Stripes, Tapestry)
- Advanced: Dependency Injection, SOAP based Web Services (JAX-WS), Some build tool (Ant, Maven, etc.), JUnit (or other Unit Testing framework), Version Control, JSTL, Application server/container configuration management and application deployment, AJAX, Design Patterns, Debugging Tools/Techniques, Continuous Integration
What are some tricks to learn Java effectively?
- Love Java. Instead of finding its shortcomings, explore the wide scope of Java.
- Dedicate your valuable time everyday for studying Java.
- Don’t give up any topic if you don’t understand. Read it until you are thorough with it.
- Practice Java concepts and programs regularly.
- Go through IIT videos on Java, available in neptel channel of Youtube to solve your doubts.
- If you still have doubts, search on Google or post your doubts in Java forums like javaranch or in quora. Thousands of professionals are there to help you out.
- If you follow the above steps, then whatsoever your capability be, you are certainly going to have a sound knowledge of Java within a month.
- Once you are confident, go for a project and develop it from scratch without any one’s help.
- Don’t give up learning. Read everyday to find something new in Java everyday.
Love Java!!! Live Java!!!
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