How to run java old version program in newer version 1.6

3 posts · originally from https://geek.digit.in/community/threads/how-to-run-java-old-version-program-in-newer-version-1-6.144105/

hello frds....i wanted to help in java newer version 1.6 software....i was using version 1.4 and my project and my other java program working fine....now i upgraded to newer version....now all the files are not compiling and running in the newer version....can any body help me on this problem...that how can i run my old version java program in newer one.

Thanks in Advance

It would be great if you can provide more specific error like, what is the error you are getting while running / compiling the program, etc.

I am assuming you want to compile your .java files compatible to older versions. You can use "-source" switch of javac for that.

Code:

javac -source 1.4 MyProgam.java

Above line will treat MyProgram.java as Java 1.4 compatible source and will produce binary which is compatible with JRE 1.4

I hope this helps.

Hi ....I attached the file in which I pasted the errors,when i trying to run my files in newer version of java 1.6. These files was running successfully in java version 1.4.