已安装 Javac 但无法运行

Question

我想编译我的第一个 java 代码，但它显示了 javac 的以下内容:

The program 'javac' can be found in the following packages:

 * default-jdk
 * ecj
 * gcj-4.6-jdk
 * gcj-4.7-jdk
 * openjdk-7-jdk
 * openjdk-6-jdk
Try: sudo apt-get install <selected package>

我安装了 openjdk，但它仍然显示与上面相同的内容。

sudo apt-get install openjdk-7-jre

Reading package lists... Done

Building dependency tree       

Reading state information... Done

openjdk-7-jre is already the newest version.

0 upgraded, 0 newly installed, 0 to remove and 0 not upgraded.

Answer 1

Java JRE 不会包含命令 javac，因为它是 Java 运行时环境。

您需要一个 Java JDK -- Java 开发工具包。请安装 openjdk-7-jdk。