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How to change java version to jdk1.7.0_80?

java -version java version "1.6.0_41" $JAVA_HOME

$JAVA_HOME: -bash: /usr/java/jdk1.7.0_80: is a directory

I have to update jdk version to 1.7.0_80 and i installed as well,but when i enter java -version,i am getting old version only

kometen
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Techdid Techjetz
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  • You need sudo access to modify such settings. Else, you should use the canonical java path to run the above command. Have a look at [this](https://stackoverflow.com/a/24641640/5051731) – YetAnotherBot Oct 31 '18 at 08:40
  • What is the type of Linux server (redhat, debian, version?)? What is the source of this jdk (oracle, openjdk, rpm, deb?)? – MariuszS Oct 31 '18 at 08:44
  • I would consider migrating to Java 8 if not Java 11 asap. Java 8 is End of Public updates soon. – Peter Lawrey Oct 31 '18 at 08:52

3 Answers3

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(1)Use following command to detect installed java version 

sudo update-alternatives --config java

enter image description here

(2)Select selection number & Enter

(3)Re-Check java version with 

java -version
Asanka Anthony
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First remove (puge) all installed JDK or JRE on your system 

  sudo apt-get purge openjdk-\*    //(for exemple to remove open jdk on ubuntu)

For other steps you can follow steps in this link

Yugerten
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In CentOs: 1. vim /etc/profile , then edit '$JAVA_HOME'. 2. source /etc/profile, make the configuration take effect. 3. java -version, validate version.

Linux-like systems are similar. (If it does'n worked. Reboot.)

Simon
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