java-1.7. What is the difference between 0-openjdk-i386 and java-7-openjdk-i386

When I install NetBeans, it gives me the option to choose the Java environment. I have three options, Oracle Java and these two (java-1.7.0-openjdk-i386 and java-7-openjdk-i386) What's the difference between the two? If it's Ubuntu

Solution

The two openjdks are the same However, openjdk is slightly different from Oracle JDK Read this post for more information

The reason why you get two options for openjdk is that you have two installed copies of openjdk (or two different references to the same directory on the system)

For further investigation, try using LS - LH / usr / lib / JVM/ Usr / lib / JVM is usually the directory where Java is installed Check whether one of them is a symbolic link In addition, check the location of the two jdks of NetBeans to see if there are two versions or Java references on the system

For example, this is the output of LS - LH on my system:

ls -lh
total 24K
lrwxrwxrwx 1 root  root    26 Sep 10 13:41 default-java -> /usr/lib/jvm/java-7-oracle
lrwxrwxrwx 1 root  root    18 Mar 13  2012 java-1.5.0-gcj -> java-1.5.0-gcj-4.6
drwxr-xr-x 7 root  root  4.0K Aug 22  2012 java-1.5.0-gcj-4.6
lrwxrwxrwx 1 root  root    19 Jun 26  2012 java-1.6.0-openjdk-i386 -> java-6-openjdk-i386
drwxr-xr-x 3 root  root  4.0K Feb 15 10:52 java-6-openjdk-common
drwxr-xr-x 7 root  root  4.0K Feb 15 10:52 java-6-openjdk-i386
drwxr-xr-x 8 ankit ankit 4.0K Jun  6  2012 java-6-sun
drwxr-xr-x 5 root  root  4.0K Aug 22  2012 java-7-openjdk-i386
drwxr-xr-x 8 root  root  4.0K Feb 20 10:40 java-7-oracle
lrwxrwxrwx 1 root  root    12 Mar 13  2012 java-gcj -> java-gcj-4.6
lrwxrwxrwx 1 root  root    18 Apr 16  2012 java-gcj-4.6 -> java-1.5.0-gcj-4.6

As you can see, java-1.6 0-openjdk-i386 is just a symbolic link / reference to another directory named java-6-openjdk-i386