What is java? Components of java

jdk ,jvm

1. Today’s Agenda :- 1). What is Java ? 2). History Of Java? 3). Components Of Java

2. What is Java ? Java is a high level, robust, object-oriented and secure programming language and a platform. --  What is Platform:- Any hardware or software environment in which a program runs, is known as a platform. Since Java has a runtime environment (JRE), it is called a platform.

3. History Of Java :- Java  developed  James Gosling  Sun Microsystems  1991. First Version JDK 1.0  Released  1995. 1st name of Java  Oak , renamed as Java  1995 . Since Oak was already a registered company, so James Gosling and his team changed the name from Oak to Java . In 2010, Oracle company has acquired Sun Microsystems .

4. Features of Java :-

5. Components of Java:- 1). JVM 2). JRE 3). JDK Java Virtual Machine (JVM) Java Run Time Environment (JRE) Java Development KIT(JDK) JVM + + Libraries Set Development Tools

6. Provides run time environment in which Java byte code can be executed.   Task Of JVM:- Loads the code Verifies the code Execute the code Provides run time environment JVM

7. JVM +Set of Libraries It is the implementation of JVM It contains set of libraries that JVM uses at rum time. Java Run time Environment ->

8. JRE + JDK -> Java Development Kit -> It is full featured development kit. -> It contains JRE +Development tools Development tools:- Compiler + Debugger + Java Doc