即使已安装新版本，Eclipse中也会出现旧的JRE版本错误

Question

I am new to Android Development.I installed Eclipse Kepler and then installed android SDK. but on restarting eclipse i get the message that JRE installed is 1.6,newer version neeeded .but when i tried to install the latest version through terminal it says newest version is already installed in the system.

what i am doing wrong?

thanks.

The error message window

And the following code when i tried to install the latest JRE 7.

winnou@winnoupc10 ~ $  sudo apt-get install openjdk-7-jre
[sudo] password for winnou: 
Reading package lists... Done
Building dependency tree       
Reading state information... Done
openjdk-7-jre is already the newest version.
openjdk-7-jre set to manually installed.
The following packages were automatically installed and are no longer required:
  language-pack-zh-hans language-pack-kde-en language-pack-kde-zh-hans language-pack-kde-en-base kde-l10n-engb kde-l10n-zhcn
  language-pack-zh-hans-base firefox-locale-zh-hans language-pack-kde-zh-hans-base
Use 'apt-get autoremove' to remove them.
0 upgraded, 0 newly installed, 0 to remove and 736 not upgraded.

Answer 1

Solved:

I was getting the error because there were 2 versions of JRE installed and the default was JRE 6.so i changed the default version to 7 and it solved the issue.

Type the following command in terminal and follow the instructions.

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-openjdk-i386/jre/bin/java   1061      auto mode
  1            /usr/bin/gij-4.6                                1046      manual mode
  2            /usr/lib/jvm/java-6-openjdk-i386/jre/bin/java   1061      manual mode
  3            /usr/lib/jvm/java-7-openjdk-i386/jre/bin/java   1051      manual mode

Press enter to keep the current choice[*], or type selection number: 3

update-alternatives: using /usr/lib/jvm/java-7-openjdk-i386/jre/bin/java to provide /usr/bin/java (java) in manual mode.