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I am new at Ubuntu 12.04 LTS. I need to install Java 6 or 7. But, when I want to do it using the software center or by terminal it responds me "install failed" and "check your Internet connection". But, I can easily install other software using Software Center and Terminal and there is no problem in my Internet connection.

What should I do now? How can I install Java on Ubuntu?

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  • do you have any custom sources added for the java packages? PPAs?
    – Karthik T
    Nov 28, 2012 at 5:12
  • by install from terminal you mean sudo apt-get update and sudo apt-get install <name of package> right?
    – Karthik T
    Nov 28, 2012 at 5:13
  • and have you tried synaptic package manager instead of software center?
    – Karthik T
    Nov 28, 2012 at 5:14
  • no i haven't use synaptic package manager. I have tried sudo apt-get update and sudo apt-get install <name of package>. but still unsuccessful.
    – Himangshu Barmon
    Nov 28, 2012 at 5:29

1 Answer 1

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If you need more information about installing java here is the documentation

I supposed that you mean the Oracle (Sun) Java 6

Do the following if you are planning to install the jre

$ wget http://download.oracle.com/otn-pub/java/jdk/6u34-b04/jre-6u34-linux-i586.bin
 $ chmod u+x jre-6u34-linux-i586.bin
 $ ./jre-6u34-linux-i586.bin
 $ sudo mkdir -p /usr/lib/jvm
 $ sudo mv jre1.6.0_34 /usr/lib/jvm/
 $ sudo update-alternatives --install "/usr/bin/java" "java" "/usr/lib/jvm/jre1.6.0_34/bin/java" 1
 $ sudo update-alternatives --install "/usr/lib/mozilla/plugins/libjavaplugin.so" "mozilla-javaplugin.so" "/usr/lib/jvm/jre1.6.0_34/lib/i386/libnpjp2.so" 1
 $ sudo update-alternatives --install "/usr/bin/javaws" "javaws" "/usr/lib/jvm/jre1.6.0_34/bin/javaws" 1

If you are planning to install the oracle java 6 jdk 32-bit

$ wget http://download.oracle.com/otn-pub/java/jdk/6u34-b04/jdk-6u34-linux-i586.bin
 $ chmod u+x jdk-6u34-linux-i586.bin
 $ ./jdk-6u34-linux-i586.bin
 $ sudo mkdir -p /usr/lib/jvm
 $ sudo mv jdk1.6.0_34 /usr/lib/jvm/
 $ sudo update-alternatives --install "/usr/bin/java" "java" "/usr/lib/jvm/jdk1.6.0_34/bin/java" 1
 $ sudo update-alternatives --install "/usr/bin/javac" "javac" "/usr/lib/jvm/jdk1.6.0_34/bin/javac" 1
 $ sudo update-alternatives --install "/usr/lib/mozilla/plugins/libjavaplugin.so" "mozilla-javaplugin.so" "/usr/lib/jvm/jdk1.6.0_34/jre/lib/i386/libnpjp2.so" 1
 $ sudo update-alternatives --install "/usr/bin/javaws" "javaws" "/usr/lib/jvm/jre1.6.0_34/bin/javaws" 1

And this important

 $ sudo update-alternatives --config java
 $ sudo update-alternatives --config javac
 $ sudo update-alternatives --config mozilla-javaplugin.so
 $ sudo update-alternatives --config javaws
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  • -------------$ chmod u+x jdk-6u34-linux-i586.bin--------- this line is showing no directory error.
    – Himangshu Barmon
    Nov 28, 2012 at 5:29

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