输入
$ java -version
The program 'java' can be found in the following packages:
* gcj-4.4-jre-headless
* gcj-4.5-jre-headless
* openjdk-6-jre-headless
Try: sudo apt-get install <selected package>
我按照http://www.wikihow.com/Install-Oracle-Java-on-Ubuntu-Linux安装了oracle jdk-7u15-linux-i586.tar.gz。 此外,
$ javac
The program 'javac' can be found in the following packages:
* openjdk-6-jdk
* ecj
* gcj-4.4-jdk
* gcj-4.5-jdk
Try: sudo apt-get install <selected package>
请帮我在系统上只安装Sun JDK / JRE。 我使用wubi运行Ubuntu 11.04。