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Terms Frequetly used By Java people...

1. JVM 
           Java Virtual Machine
2. Bytecode         
            Language that machine understands
3. Class (POJO)
             The blueprint of memory where our data will be allocated.If otherside persong dont have great  knowlege  about java,smart pople call it POJO(Plain Old Java Object)
              It is building constructed from blueprint and specially allocated to you..many buildings can be formed....
              What is mine and what is your.Oops is it bounce?,dont wory you know it.Hint : private,public,prote...
6. JDK
               Java Development Kit. It consist of compilers,debuggures,JRE's,JVM's
              Java Runtime Enviroment.It consist of core implementation of JVMs

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Official explanation,
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Step 1:
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