Showing posts with label check the jdk version. Show all posts
Showing posts with label check the jdk version. Show all posts

Tuesday 26 May 2015

how to check the jdk version used to compile a .class file

Hi Fellas,

today i'm sharing my learning with you to how to check the jdk version used to compile a .class file.


On Unix/Linux:

javap -verbose MyClass | grep "major"

On Windows:

javap -verbose MyClass | findstr "major"

  • Java 1.2 uses major version 46
  • Java 1.3 uses major version 47
  • Java 1.4 uses major version 48
  • Java 5 uses major version 49
  • Java 6 uses major version 50
  • Java 7 uses major version 51
  • Java 8 uses major version 52
  • Java 9 uses major version 53
  • Java 10 uses major version 54

thank you :)

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