Your SlideShare is downloading. ×
0
Jvm
Jvm
Jvm
Jvm
Jvm
Jvm
Upcoming SlideShare
Loading in...5
×

Thanks for flagging this SlideShare!

Oops! An error has occurred.

×
Saving this for later? Get the SlideShare app to save on your phone or tablet. Read anywhere, anytime – even offline.
Text the download link to your phone
Standard text messaging rates apply

Jvm

173

Published on

Published in: Technology, News & Politics
0 Comments
1 Like
Statistics
Notes
  • Be the first to comment

No Downloads
Views
Total Views
173
On Slideshare
0
From Embeds
0
Number of Embeds
0
Actions
Shares
0
Downloads
0
Comments
0
Likes
1
Embeds 0
No embeds

Report content
Flagged as inappropriate Flag as inappropriate
Flag as inappropriate

Select your reason for flagging this presentation as inappropriate.

Cancel
No notes for slide

Transcript

  • 1. Nibble MATRIX
  • 2. What is JDK,JVM,JRE?JDK: Java Development Kit contains tools needed to develop javaprograms. the tools are(JAVAC.EXE=compiler , JAVA.EXE= how you startthe JVM) applet viewer etc.JRE: JRE=JVM+Java packages(class libraries as util,math,lang,awt,swing...)Actually JVM runs the program, and it uses the class libraries, and othersupporting files provided in JRE If you want to run any java program, you need to have JRE installed in thesystem JVM:                               JVM is an InterpreterWhen we compile a JAVA File, output is not an .exe but its a .class fileconsist of Java Byte Codes Which are understandable by JVM. JVMInteprets the bytecodes into the machine code depending on operatingsystem and hardware combination
  • 3. JVM
  • 4. Description of jvmCL=loading classes and interfacesExecution Engine= executing the instruction contained in methods ofloaded classes .Each instruction of JVM has one method area and one heap area .These area are shared by all thread running inside virtual machineMethod Area= class dataHeap Area= objectPC Register= Thread 1 , Thread 2, Thread 3Java Stacks= stack frame Native method= is a great way to gain and merge the power of C orC++ programming into Java

×