[问题]关于jdk的问题（老问题已经解决，新问题又出现了java1.4的字体问题）～～～！

[why_790721]

我原来在6.06上安装java WTK时可以自动找到jdk的路径，但是在7.04中安装java WTK却找不到路径（jdk我已经安装了），需要自己手动输入路径，可是我试过所有的java路径，都提示我说不是有效的java解释器，到底jdk安装在那个目录，望高手指点我！
java WTK只认java1.4，所以我下载并安装上了，可是出来的全是方块，不是中文啊！

[xport]

回答你的问题，如果是从软件源来安装JDK环境，默认有2个，会在 Debian alternative 机制下设定：

查看java命令是哪个？

代码： 全选

$ which java
/usr/bin/java

发现是指向 alternatives 命令的一个符号链接：

代码： 全选

$ ls -l `which java`
lrwxrwxrwx 1 root root 22 2007-01-17 01:59 /usr/bin/java -> /etc/alternatives/java

而所有的 alternatives 命令也只是一个符号链接，指向目前所启用的候选命令：

代码： 全选

$ ls -l /etc/alternatives/java
lrwxrwxrwx 1 root root 40 2007-04-04 09:46 /etc/alternatives/java -> /usr/lib/jvm/java-1.5.0-sun/jre/bin/java

查看 java 的 alternatives 所对应的所有候选命令，priority 高的在 auto 模式下会优先使用，我这里是 manual 状态。

代码： 全选

$ update-alternatives --display java
java - status is manual.
 link currently points to /usr/lib/jvm/java-1.5.0-sun/jre/bin/java
/usr/lib/jvm/java-1.5.0-sun/jre/bin/java - priority 53
 slave java.1.gz: /usr/lib/jvm/java-1.5.0-sun/jre/man/man1/java.1.gz
/usr/bin/gij-wrapper-4.1 - priority 41
 slave java.1.gz: /usr/share/man/man1/gij-wrapper-4.1.1.gz
Current `best' version is /usr/lib/jvm/java-1.5.0-sun/jre/bin/java.

可以看到，我目前的 java 命令所在的目录实际上是：/usr/lib/jvm/java-1.5.0-sun/jre/bin/java

[why_790721]

楼上的大侠，你的回答太深奥了我看不明白啊！干脆我贴个图你看看（我安装的是j2me_wireless_toolkit-2_2-ml-linux-i386.bin）：

[oneleaf]

/usr/lib/jvm/java-1.5.0-sun/

[czybear]

它文你要的是j2se sdk（Java 2 SDK, Standard Edition）的路径阿，你装的是j2me 当然不行了。

[why_790721]

它文你要的是j2se sdk（Java 2 SDK, Standard Edition）的路径阿，你装的是j2me 当然不行了。

难道sudo apt-get install sun-java6-jdk这个命令安装的是j2me？

[xport]

你的安装程序等你喂JDK的path进去，你却输入了个java文件的路径，当然啊不行了，仔细看安装时候的提示呀~~~

Enter the path to the Java 2 SDK

输入这个看看：/usr/lib/jvm/java-6-sun/，如果还是有问题，就试试： /usr/lib/jvm/java-6-sun/jre/

[why_790721]

早就已经是过了，不行。
还是提示：
/usr/lib/jvm/java-6-sun/ is not a suitable Java interpreter

/usr/lib/jvm/java-6-sun/jre/ is not a suitable Java interpreter

[xport]

为什么不仔细看“系统要求”的说明呢？ http://gceclub.sun.com.cn/products/sjwt ... d-2_2.html

* Microsoft Windows XP 或（不支持的）Linux-x86
* 如果您打算从事实际开发，请使用 JavaTM 2 SDK Standard Edition (J2SE SDK) 版本 1.4.2；如果您只打算运行演示应用程序，请使用 JavaTM 2 Standard Edition Runtime Environment (JRE) 版本 1.4.2。

要下载所需的 SDK 或 JRE，请转至 http://java.sun.com/j2se/downloads.html

[neomi]

最少也该是

代码： 全选

/usr/lib/jvm/java-6-sun/jdk/bin

吧，说的是 interpreter path

路径以你实际安装的为准，jdk 里的 java bin 文件在哪就写哪

放心，我最近正好在 linux 下做 j2me 的工程，都是实际试过的

[xport]

楼上是正确的。

[why_790721]

这是我的jdk的安装路径：
./
usr/
usr/share/
usr/share/doc/
usr/share/doc/sun-java6-jdk/
usr/share/doc/sun-java6-jdk/README.html
usr/share/doc/sun-java6-jdk/README.alternatives
usr/share/doc/sun-java6-jdk/copyright
usr/share/doc/sun-java6-jdk/changelog.Debian.gz
usr/share/java-6-sun-1.6.0.00/
usr/share/applications/
usr/share/applications/sun-java6-jconsole.desktop
usr/share/lintian/
usr/share/lintian/overrides/
usr/share/lintian/overrides/sun-java6-jdk
usr/share/doc-base/
usr/share/doc-base/sun-java6-jdk-readme
usr/share/menu/
usr/share/menu/sun-java6-jdk
usr/lib/
usr/lib/jvm/
usr/lib/jvm/java-6-sun-1.6.0.00/
usr/lib/jvm/java-6-sun-1.6.0.00/jre/
usr/lib/jvm/java-6-sun-1.6.0.00/jre/lib/
usr/lib/jvm/java-6-sun-1.6.0.00/jre/lib/i386/
usr/lib/jvm/java-6-sun-1.6.0.00/man/
usr/lib/jvm/java-6-sun-1.6.0.00/man/man1/
usr/lib/jvm/java-6-sun-1.6.0.00/man/man1/apt.1.gz
usr/lib/jvm/java-6-sun-1.6.0.00/man/man1/extcheck.1.gz
usr/lib/jvm/java-6-sun-1.6.0.00/man/man1/idlj.1.gz
usr/lib/jvm/java-6-sun-1.6.0.00/man/man1/jar.1.gz
usr/lib/jvm/java-6-sun-1.6.0.00/man/man1/javac.1.gz
usr/lib/jvm/java-6-sun-1.6.0.00/man/man1/javadoc.1.gz
usr/lib/jvm/java-6-sun-1.6.0.00/man/man1/javah.1.gz
usr/lib/jvm/java-6-sun-1.6.0.00/man/man1/javap.1.gz
usr/lib/jvm/java-6-sun-1.6.0.00/man/man1/jconsole.1.gz
usr/lib/jvm/java-6-sun-1.6.0.00/man/man1/jdb.1.gz
usr/lib/jvm/java-6-sun-1.6.0.00/man/man1/jhat.1.gz
usr/lib/jvm/java-6-sun-1.6.0.00/man/man1/jmap.1.gz
usr/lib/jvm/java-6-sun-1.6.0.00/man/man1/jps.1.gz
usr/lib/jvm/java-6-sun-1.6.0.00/man/man1/jrunscript.1.gz
usr/lib/jvm/java-6-sun-1.6.0.00/man/man1/jsadebugd.1.gz
usr/lib/jvm/java-6-sun-1.6.0.00/man/man1/jstack.1.gz
usr/lib/jvm/java-6-sun-1.6.0.00/man/man1/jstatd.1.gz
usr/lib/jvm/java-6-sun-1.6.0.00/man/man1/native2ascii.1.gz
usr/lib/jvm/java-6-sun-1.6.0.00/man/man1/rmic.1.gz
usr/lib/jvm/java-6-sun-1.6.0.00/man/man1/serialver.1.gz
usr/lib/jvm/java-6-sun-1.6.0.00/man/man1/wsgen.1.gz
usr/lib/jvm/java-6-sun-1.6.0.00/man/man1/wsimport.1.gz
usr/lib/jvm/java-6-sun-1.6.0.00/man/man1/xjc.1.gz
usr/lib/jvm/java-6-sun-1.6.0.00/man/man1/appletviewer.1.gz
usr/lib/jvm/java-6-sun-1.6.0.00/man/man1/jarsigner.1.gz
usr/lib/jvm/java-6-sun-1.6.0.00/man/man1/jinfo.1.gz
usr/lib/jvm/java-6-sun-1.6.0.00/man/man1/jstat.1.gz
usr/lib/jvm/java-6-sun-1.6.0.00/man/man1/schemagen.1.gz
usr/lib/jvm/java-6-sun-1.6.0.00/man/ja/
usr/lib/jvm/java-6-sun-1.6.0.00/man/ja/man1/
usr/lib/jvm/java-6-sun-1.6.0.00/man/ja/man1/apt.1.gz
usr/lib/jvm/java-6-sun-1.6.0.00/man/ja/man1/extcheck.1.gz
usr/lib/jvm/java-6-sun-1.6.0.00/man/ja/man1/idlj.1.gz
usr/lib/jvm/java-6-sun-1.6.0.00/man/ja/man1/jar.1.gz
usr/lib/jvm/java-6-sun-1.6.0.00/man/ja/man1/javac.1.gz
usr/lib/jvm/java-6-sun-1.6.0.00/man/ja/man1/javadoc.1.gz
usr/lib/jvm/java-6-sun-1.6.0.00/man/ja/man1/javah.1.gz
usr/lib/jvm/java-6-sun-1.6.0.00/man/ja/man1/javap.1.gz
usr/lib/jvm/java-6-sun-1.6.0.00/man/ja/man1/jconsole.1.gz
usr/lib/jvm/java-6-sun-1.6.0.00/man/ja/man1/jdb.1.gz
usr/lib/jvm/java-6-sun-1.6.0.00/man/ja/man1/jhat.1.gz
usr/lib/jvm/java-6-sun-1.6.0.00/man/ja/man1/jmap.1.gz
usr/lib/jvm/java-6-sun-1.6.0.00/man/ja/man1/jps.1.gz
usr/lib/jvm/java-6-sun-1.6.0.00/man/ja/man1/jrunscript.1.gz
usr/lib/jvm/java-6-sun-1.6.0.00/man/ja/man1/jsadebugd.1.gz
usr/lib/jvm/java-6-sun-1.6.0.00/man/ja/man1/jstack.1.gz
usr/lib/jvm/java-6-sun-1.6.0.00/man/ja/man1/jstatd.1.gz
usr/lib/jvm/java-6-sun-1.6.0.00/man/ja/man1/native2ascii.1.gz
usr/lib/jvm/java-6-sun-1.6.0.00/man/ja/man1/rmic.1.gz
usr/lib/jvm/java-6-sun-1.6.0.00/man/ja/man1/serialver.1.gz
usr/lib/jvm/java-6-sun-1.6.0.00/man/ja/man1/wsgen.1.gz
usr/lib/jvm/java-6-sun-1.6.0.00/man/ja/man1/wsimport.1.gz
usr/lib/jvm/java-6-sun-1.6.0.00/man/ja/man1/xjc.1.gz
usr/lib/jvm/java-6-sun-1.6.0.00/man/ja/man1/appletviewer.1.gz
usr/lib/jvm/java-6-sun-1.6.0.00/man/ja/man1/jarsigner.1.gz
usr/lib/jvm/java-6-sun-1.6.0.00/man/ja/man1/jinfo.1.gz
usr/lib/jvm/java-6-sun-1.6.0.00/man/ja/man1/jstat.1.gz
usr/lib/jvm/java-6-sun-1.6.0.00/man/ja/man1/schemagen.1.gz
usr/lib/jvm/java-6-sun-1.6.0.00/bin/
usr/lib/jvm/java-6-sun-1.6.0.00/bin/javac
usr/lib/jvm/java-6-sun-1.6.0.00/bin/javadoc
usr/lib/jvm/java-6-sun-1.6.0.00/bin/apt
usr/lib/jvm/java-6-sun-1.6.0.00/bin/javah
usr/lib/jvm/java-6-sun-1.6.0.00/bin/idlj
usr/lib/jvm/java-6-sun-1.6.0.00/bin/jarsigner
usr/lib/jvm/java-6-sun-1.6.0.00/bin/java-rmi.cgi
usr/lib/jvm/java-6-sun-1.6.0.00/bin/jar
usr/lib/jvm/java-6-sun-1.6.0.00/bin/xjc
usr/lib/jvm/java-6-sun-1.6.0.00/bin/schemagen
usr/lib/jvm/java-6-sun-1.6.0.00/bin/wsgen
usr/lib/jvm/java-6-sun-1.6.0.00/bin/wsimport
usr/lib/jvm/java-6-sun-1.6.0.00/bin/appletviewer
usr/lib/jvm/java-6-sun-1.6.0.00/bin/rmic
usr/lib/jvm/java-6-sun-1.6.0.00/bin/javap
usr/lib/jvm/java-6-sun-1.6.0.00/bin/native2ascii
usr/lib/jvm/java-6-sun-1.6.0.00/bin/serialver
usr/lib/jvm/java-6-sun-1.6.0.00/bin/jps
usr/lib/jvm/java-6-sun-1.6.0.00/bin/jstat
usr/lib/jvm/java-6-sun-1.6.0.00/bin/jstatd
usr/lib/jvm/java-6-sun-1.6.0.00/bin/jsadebugd
usr/lib/jvm/java-6-sun-1.6.0.00/bin/jstack
usr/lib/jvm/java-6-sun-1.6.0.00/bin/jmap
usr/lib/jvm/java-6-sun-1.6.0.00/bin/jinfo
usr/lib/jvm/java-6-sun-1.6.0.00/bin/jconsole
usr/lib/jvm/java-6-sun-1.6.0.00/bin/jrunscript
usr/lib/jvm/java-6-sun-1.6.0.00/bin/jhat
usr/lib/jvm/java-6-sun-1.6.0.00/bin/extcheck
usr/lib/jvm/java-6-sun-1.6.0.00/bin/jdb
usr/lib/jvm/java-6-sun-1.6.0.00/bin/HtmlConverter
usr/lib/jvm/java-6-sun-1.6.0.00/include/
usr/lib/jvm/java-6-sun-1.6.0.00/include/jni.h
usr/lib/jvm/java-6-sun-1.6.0.00/include/linux/
usr/lib/jvm/java-6-sun-1.6.0.00/include/linux/jni_md.h
usr/lib/jvm/java-6-sun-1.6.0.00/include/linux/jawt_md.h
usr/lib/jvm/java-6-sun-1.6.0.00/include/jvmti.h
usr/lib/jvm/java-6-sun-1.6.0.00/include/classfile_constants.h
usr/lib/jvm/java-6-sun-1.6.0.00/include/jawt.h
usr/lib/jvm/java-6-sun-1.6.0.00/include/jdwpTransport.h
usr/lib/jvm/java-6-sun-1.6.0.00/lib/
usr/lib/jvm/java-6-sun-1.6.0.00/lib/jconsole.jar
usr/lib/jvm/java-6-sun-1.6.0.00/lib/sa-jdi.jar
usr/lib/jvm/java-6-sun-1.6.0.00/lib/ct.sym
usr/lib/jvm/java-6-sun-1.6.0.00/lib/orb.idl
usr/lib/jvm/java-6-sun-1.6.0.00/lib/ir.idl
usr/lib/jvm/java-6-sun-1.6.0.00/lib/jexec
usr/lib/jvm/java-6-sun-1.6.0.00/lib/dt.jar
usr/lib/jvm/java-6-sun-1.6.0.00/lib/htmlconverter.jar
usr/lib/jvm/java-6-sun-1.6.0.00/lib/tools.jar
usr/lib/jvm/java-6-sun-1.6.0.00/README.html
usr/lib/jvm/java-6-sun-1.6.0.00/COPYRIGHT
usr/lib/jvm/java-6-sun-1.6.0.00/LICENSE
usr/lib/jvm/java-6-sun-1.6.0.00/THIRDPARTYLICENSEREADME.txt
我仔细找了里面没有我想要得文件。

[neomi]

不好意思，我记错 ubuntu 下 jdk 的目录结构了

按你贴出来的应该是

代码： 全选

/usr/lib/jvm/java-6-sun-1.6.0.00/bin/

[why_790721]

不好意思，我记错 ubuntu 下 jdk 的目录结构了

按你贴出来的应该是

代码： 全选

/usr/lib/jvm/java-6-sun-1.6.0.00/bin/

我早已经试过了，不行的！

[why_790721]

谢谢各位的赐教，问题已经解决了：我下载了一个1.4的版本，然后安装，最后安装j2me_wireless_toolkit-2_2-ml-linux-i386.bin时输入路径，ok了！
不过新的问题有出现了，安装完之后，我的j2me_wireless_toolkit的字体都是方块了！
怎么办？