Why JVM will outlive java?
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The document discusses the role of the Java Virtual Machine (JVM) in executing Java programs and its ability to support various programming languages beyond Java itself. It emphasizes that while Java's popularity may be declining, the JVM remains a robust and stable execution environment, making JVM engineers increasingly valuable in the tech industry. The document also highlights the importance of JVM knowledge in maintaining performance and availability in production systems.
![Languages that run on JVM
clojure
Language
Java implementations
Ada
JGNAT
BBx
BBjis a superset ofBBx, PRO/5, and Visual PRO/5.
C
C to Java Virtual Machine compilers[2]
CFML
Adobe ColdFusionRailoOpen BlueDragon
Common Lisp
Armed Bear Common Lisp[3] CLforJava
JavaScript
RhinoNashorn
Pascal
Free PascalMIDletPascalOxygene
Perl 6
Rakudo Perl 6
Prolog
JIPrologTuProlog
Python
Jython
REXX
NetRexx
Ruby
JRuby
Scheme
BiglooKawaSISCJScheme
Tcl
Jacl
New languages with JVM implementations
AtejiPX
BBj
BeanShell
Ceylon
CFML
CAL
E
Fantom
Flow Java
Fortress
Frege
Frink
Gosu
Ioke
Jelly
Join JavaJoy
Judoscript
Kotlin
Mirah
NetLogoNice
Noop
Pizza
Pnuts
Processing
X10
Xtend
Popular Languages
and
50+ languages](https://image.slidesharecdn.com/jvmoutlivejava-141124193808-conversion-gate01/85/Why-JVM-will-outlive-java-6-320.jpg)
Why JVM will outlive java?
- 1. Why JVM will outlive Java? Hardware Architecture Java Application JVM Operation System Ram Lakshmanan www.linkedin.com/in/ramlakshman/
- 2. What is Java? What is JVM? •Java –programming language •JVM -Translates the Java program into instructions and commands that run on the local operating system. Hardware Architecture Java Application JVM Operation System
- 3. Java & JVM A.java Java Compiler (javac) A.class (OS specific) JVM Build Time Run Time
- 4. Write Once, Run Anywhere –Promise Hardware Architecture x Java Application (OS-1) JVM Operation System 1 Hardware Architecture y Java Application (OS-n) JVM Operation System n Just because of JVM
- 5. Ready for a Surprise? •JVM knows nothing of the Java programming language •It just knows of a particular binary format, the class file format. Hardware Architecture Java Application JVM Operation System As long as you pass specified class format, JVM can execute it. A.java Java Compiler (javac) A.class (OS specific) JVM A.scala Scala Compiler (scalac) A.xyz XYZ Compiler
- 6. Languages that run on JVM clojure Language Java implementations Ada JGNAT BBx BBjis a superset ofBBx, PRO/5, and Visual PRO/5. C C to Java Virtual Machine compilers[2] CFML Adobe ColdFusionRailoOpen BlueDragon Common Lisp Armed Bear Common Lisp[3] CLforJava JavaScript RhinoNashorn Pascal Free PascalMIDletPascalOxygene Perl 6 Rakudo Perl 6 Prolog JIPrologTuProlog Python Jython REXX NetRexx Ruby JRuby Scheme BiglooKawaSISCJScheme Tcl Jacl New languages with JVM implementations AtejiPX BBj BeanShell Ceylon CFML CAL E Fantom Flow Java Fortress Frege Frink Gosu Ioke Jelly Join JavaJoy Judoscript Kotlin Mirah NetLogoNice Noop Pizza Pnuts Processing X10 Xtend Popular Languages and 50+ languages
- 7. Why JVM will outlive Java? •Java lost it’s primary focus -Simplicity oBut for GC and pointers, Java more or less has same amount of complexity that C/C++ used to have. •Not widely used in new developments (especially in startups). But strong contender in Enterprise world.
- 8. Job Trends –last 8 years Other JVM languages eating Java’s share Note the decline
- 9. JVM –Universe’s most stable/Robust Execution Environment!
- 10. Opportunity to you! •If you are a JVM Engineer. It doesn’t matter •What Language –Java, Scala, Groovy, Jruby, Clojure…. •What Server –Tomcat, Resin, Jboss, Webshphere •What Framework –Spring, Apache, Guava…. •You are going to be invaluable. You can •isolate performance bottlenecks •keep production highly available –99.999% •Scale the Platform 10 million Java Developers. <3% know about JVM
- 11. JVM Engineers –Super Stars of Organization
- 12. Thank you! •To learn more about JVM visit my blog: http://tier1app.com/