Installing Java 7 on Ubuntu

Question

to install java I have always used the classic way from the terminal  I would like to install java manually  I placed the folder of the JDK on the desk and I set environment variables  PATH  CLASSPATH and JAVA HOME   From the terminal  if I type java -version I get printed  foralobo ubuntu-vincy    java -version java version  1 7 0 21  Java TM  SE Runtime Environment  build 1 7 0 21-b11  Java HotSpot TM  64-Bit Server VM  build 23 21-b01  mixed mode    But when I try to install eclipse or netbeans  the system warns by saying that there is no java installed on the machine   What is missing to compleatare manual installation   Ubuntu 13 04

User · Answer

Open Applicaction - gt  Accessories - gt  Terminal  Type commandline as below     sudo apt-get install openjdk-7-jdk  Type commandline as below     apt-cache search jdk   Note  openjdk-7-jdk is symbolically used here  You can choose the JDK version as per your requirement    For  JAVA HOME   Environment Variable  type command as shown below  in  Terminal  using your installation path     export JAVA HOME  usr lib jvm java-7-openjdk   Note    usr lib jvm java-7-openjdk  is symbolically used here just for demostration  You should use your path as per your installation    For  PATH   Environment Variable  type command as shown below  in  Terminal  using your installation path     export PATH  PATH  usr lib jvm java-7-openjdk bin   Note    usr lib jvm java-7-openjdk  is symbolically used here just for demostration  You should use your path as per your installation    Check for  open jdk  installation  just type command in  Terminal  as shown below  javac -version

User · Answer

flup s answer is the best but it did not work for me completely  I had to do the following as well to get it working    export JAVA HOME  usr lib jvm java-7-oracle jre  chmod 777 on the folder   gradlew build - Building Hibernate

User · Answer

I think you should consider Java installation procedure carefully  Following is the detailed process which covers almost all possible failures   Installing Java with apt-get is easy  First  update the package index   sudo apt-get update   Then  check if Java is not already installed   java -version   If it returns  The program java can be found in the following packages   Java hasn t been installed yet  so execute the following command   sudo apt-get install default-jre   You are fine till now as I assume   This will install the Java Runtime Environment  JRE   If you instead need the Java Development Kit  JDK   which is usually needed to compile Java applications  for example Apache Ant  Apache Maven  Eclipse and IntelliJ IDEA execute the following command   sudo apt-get install default-jdk   That is everything that is needed to install Java    Installing OpenJDK 7   To install OpenJDK 7  execute the following command   sudo apt-get install openjdk-7-jre    This will install the Java Runtime Environment  JRE   If you instead need the Java Development Kit  JDK   execute the following command   sudo apt-get install openjdk-7-jdk   Installing Oracle JDK   The Oracle JDK is the official JDK  however  it is no longer provided by Oracle as a default installation for Ubuntu    You can still install it using apt-get  To install any version  first execute the following commands   sudo apt-get install python-software-properties sudo add-apt-repository ppa webupd8team java sudo apt-get update   Then  depending on the version you want to install  execute one of the following commands   Oracle JDK 7   sudo apt-get install oracle-java7-installer   Oracle JDK 8   sudo apt-get install oracle-java8-installer

User · Answer

Oracle as well as modern versions of Ubuntu have moved to newer versions of Java   The default for Ubuntu 20 04 is OpenJDK 11 which is good enough for most purposes     If you really need it for running legacy programs  OpenJDK 8 is also available for Ubuntu 20 04 from the official repositories   If you really need exactly Java 7  the best bet as of 2020 is to download a Zulu distribution   The easiest to install if you have root privileges is the  DEB version  otherwise download the  ZIP one   https   www azul com downloads zulu-community  version java-7-lts amp os ubuntu amp architecture x86-64-bit amp package jdk

User · Answer

Download java jdk lt version gt -linux-x64 tar gz file from https   www oracle com technetwork java javase downloads index html   Extract  this file where you want  like   home java Folder name created by user in home directory    Now open terminal  Set path JAVA HOME path of your jdk folder open jdk folder then right click on any folder  go to properties then copy the path using select all   and paste here   Like  JAVA HOME  home xxxx java JDK1 8 0 201  Let Ubuntu know where our JDK JRE is located   sudo update-alternatives --install  usr bin java java  home xxxx java jdk1 8 0 201 bin java 20000 sudo update-alternatives --install  usr bin javac javac  home xxxx java jdk1 8 0 201 bin javac 20000 sudo update-alternatives --install  usr bin javaws javaws  home xxxx java jdk1 8 0 201 bin javaws 20000   Tell Ubuntu that our installation i e   jdk1 8 0 05 must be the default Java   sudo update-alternatives --set java  home xxxx sipTest jdk1 8 0 201 bin java sudo update-alternatives --set javac  home xxxx java sipTest jdk1 8 0 201 bin javac sudo update-alternatives --set javaws  home xxxxx sipTest jdk1 8 0 201 bin javaws   Now try     sudo update-alternatives --config java   There are 3 choices for the alternative java  providing  usr bin java      Selection    Path                                  Priority   Status ------------------------------------------------------------   0             usr lib jvm java-6-oracle1 bin java   1047      auto mode   1             usr bin gij-4 6                       1046      manual mode   2             usr lib jvm java-6-oracle1 bin java   1047      manual mode   3             usr lib jvm jdk1 7 0 75 bin java      1         manual mode   Press enter to keep the current choice      or type selection number  3  update-alternatives  using  usr lib jvm jdk1 7 0 75 bin java to provide  usr bin java  java  in manual mode   Repeat the above for   sudo update-alternatives --config javac sudo update-alternatives --config javaws

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In addition to flup s answer you might also want to run the following to set JAVA HOME and PATH   sudo apt-get install oracle-java7-set-default   More information at  http   www ubuntuupdates org package webupd8 java precise main base oracle-java7-set-default

User · Answer

This answer used to describe how to install Oracle Java 7  This no longer works since Oracle end-of-lifed Java 7 and put the binary downloads for versions with security patches behind a paywall  Also  OpenJDK has grown up and is a more viable alternative nowadays    In Ubuntu 16 04 and higher  Java 7 is no longer available  Usually you re best off installing Java 8  or 9  instead   sudo apt-get install openjdk-8-jre   or  f you also want the compiler  get the jdk    sudo apt-get install openjdk-8-jdk   In Trusty  the easiest way to install Java 7 currently is to install OpenJDK package   sudo apt-get install openjdk-7-jre   or  for the jdk   sudo apt-get install openjdk-7-jdk   If you are specifically looking for Java 7 on a version of Ubuntu that no longer supports it  see https   askubuntu com questions 761127 how-do-i-install-openjdk-7-on-ubuntu-16-04-or-higher

User · Answer

PPA method no longer works   While Oracle Java 6 and 7 are not supported for quite a while  they were still available for download on Oracle s website until recently  However  the binaries were removed about 10 days ago      so the Oracle Java  JDK  6 and 7 installers available in the WebUpd8 Oracle Java PPA no longer work  Oracle Java 6 and 7 are now only available for those with an Oracle Support account  which is not free   so I can t support this for the PPA packages   Source   http   www webupd8 org 2017 06 why-oracle-java-7-and-6-installers-no html Dated   June 2017 Oracle s download page says  Updates for Java SE 7 released after April 2015  and updates for Java SE 6 released after April 2013 are only available to Oracle Customers through My Oracle Support  requires support login   Java SE Advanced offers users commercial features  access to critical bug fixes  security fixes  and general maintenance quot    I had to download it from Oracle archives - http   www oracle com technetwork java javase downloads java-archive-downloads-javase7-521261 html You need an account for this though

User · Answer

Oracle Java 1 7 0 from  deb packages  wget https   raw github com flexiondotorg oab-java6 master oab-java sh chmod  x oab-java sh sudo   oab-java sh -7 sudo apt-get update sudo sudo apt-get install oracle-java7-jdk oracle-java7-fonts oracle-java7-source  sudo apt-get dist-upgrade   Workaround for 1 7 0 51  There is an Issue 123 currently in OAB and a pull request  Here is the patched vesion   wget https   raw github com ladios oab-java6 master oab-java sh chmod  x oab-java sh sudo   oab-java sh -7 sudo apt-get update sudo sudo apt-get install oracle-java7-jdk oracle-java7-fonts oracle-java7-source  sudo apt-get dist-upgrade

User · Answer

sudo apt-get update sudo apt-get install openjdk-7-jdk   and if you already have other JDK versions installed  sudo update-alternatives --config java   then select the Java 7 version

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