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How to change Java (JVM) version in Mac OS?


Recently, I had an issue to change my default JVM version in my Mac machine. I want to provide steps to change java version with Mac OS. Use below command to check current default java version:

java -version

Download required java version and install it before proceed to further.

Open terminal, and run below command:

cd /System/Library/Frameworks/JavaVM.framework/Versions/

Check where your java is installed, in general, you can find your java installation in the below location:

/System/Library/Java/JavaVirtualMachines
/Library/Java/JavaVirtualMachines/

Find the right jdk path and create a softlink as shown below: Here I am making Java 7 as default version.

rm CurrentJDK
ln -s /Library/Java/JavaVirtualMachines/jdk1.7.0_51.jdk/Contents/ CurrentJDK

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Knowledge Centre
String Vs StringBuffer
We know that String is immutable object. We can not change the value of a String object once it is initiated. If we try to change the value of the existing String object then it creates new object rather than changing the value of the existing object. So incase, we are going to do more modificatios on String, then use StringBuffer. StringBuffer updates the existing objects value, rather creating new object.
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Do not confuse motion and progress. A rocking horse keeps moving but does not make any progress.
-- Alfred A. Montapert

About Author

I'm Nataraja Gootooru, programmer by profession and passionate about technologies. All examples given here are as simple as possible to help beginners. The source code is compiled and tested in my dev environment.

If you come across any mistakes or bugs, please email me to [email protected].

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Reference: Java™ Platform Standard Ed. 7 - API Specification | Java™ Platform Standard Ed. 8 - API Specification | Java is registered trademark of Oracle.
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