Java, born from the visionary mind of James Gosling at Sun Microsystems (now part of Oracle Corporation), stands as a comprehensive system for crafting application software and deploying it seamlessly across diverse computing platforms.

The versatility of Java knows no bounds, with its presence felt in a vast spectrum of computing environments. From embedded devices and mobile phones to robust enterprise servers and supercomputers, Java’s reach is all-encompassing.

Writing code in the Java programming language primarily involves producing byte code intended for execution in a Java virtual machine (JVM). The adaptability of Java extends to byte code compilers for other languages, including Ada, JavaScript, Python, and Ruby. Furthermore, the JVM has been tailored to support various languages, such as Clojure, Groovy, and Scala, running natively.

Java’s syntax draws inspiration from C and C++, while its object-oriented features take cues from Smalltalk and Objective-C. A groundbreaking move in 2006 saw Sun Microsystems release a substantial portion of Java’s implementation under the GNU General Public License (GPL), marking a significant milestone in its evolution.

• Variables , Constant and Literals
• Methods in Java

• Constructor in Java
• modifiers in Java

• Static Keyword
• Final Keyword

• Inner Class in Java
• Super And this Keyword

• OOPs concepts
• Encapsulation

• Inheritance
• Polymorphism

• Abstraction
• Garbage Collection

• Input Output Stream
• Collections Framework

• Serialization
• Exception Handling in Java

• Java Annotations
• Reflection in Java

• Java Array
• String, String Buffer , String Builder

• Java Thread,
• JDBC

• Agile
• Design Pattern

• Database