即使已安装新版本，Eclipse中也会出现旧的JRE版本错误

Question

我是Android开发的新手，先安装了Eclipse Kepler，然后安装了android SDK。 但是在重新启动eclipse时，我得到的消息是JRE installed is 1.6,newer version neeeded当我尝试通过终端安装最新版本时，它说系统中已经安装了最新版本。

我做错了什么？

谢谢。

错误消息窗口

以及以下代码，当我尝试安装最新的JRE 7时。

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

解决了：

我收到错误消息是因为安装了2个版本的JRE，默认版本是JRE6。所以我将默认版本更改为7，从而解决了该问题。

在终端中键入以下命令，然后按照说明进行操作。

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.