如题：

/usr/lib/jvm

楼上的能不能说的再详细一些呀，我在里面照了很长时间也没找到。你帮我看看这句话：
Testing /usr/bin/X11/java...
Exception in thread "main" java.lang.ClassFormatError: Extra bytes at the end of class file com/sun/kvem/environment/JavaVersionTester
at java.lang.ClassLoader.defineClass1(Native Method)
at java.lang.ClassLoader.defineClass(ClassLoader.java:620)
at java.security.SecureClassLoader.defineClass(SecureClassLoader.java:124)
at java.net.URLClassLoader.defineClass(URLClassLoader.java:260)
at java.net.URLClassLoader.access$000(URLClassLoader.java:56)
at java.net.URLClassLoader$1.run(URLClassLoader.java:195)
at java.security.AccessController.doPrivileged(Native Method)
at java.net.URLClassLoader.findClass(URLClassLoader.java:188)
at java.lang.ClassLoader.loadClass(ClassLoader.java:306)
at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:276)
at java.lang.ClassLoader.loadClass(ClassLoader.java:251)
at java.lang.ClassLoader.loadClassInternal(ClassLoader.java:319)

No suitable Java interpreter was detected

0) Specify a path to a Java interpreter directory.
1) Cancel this installation.
Select a choice [0-1]: 0

This application requires Java 2 SDK, Standard Edition (1.4 or later). Enter a path to a Java 2 SDK (For example: /user/jdk1.4/bin). You can type "exit" to cancel installation.
Enter a path to the Java 2 SDK:

难道就没有人知道吗？

快速指南？
另外，在~/.bashrc中加入
export JAVA_HOME=/usr/lib/jvm/java-1.5.0-sun
export PATH="${PATH}:${JAVA_HOME}/bin"