Ubuntu 10.04 下安装 JDK5

Now my os is Ubuntu10.4.And there are lots of problem with me and Ubuntu.

How can i set chinese input ?

I can see PinYin Input,but it does not work…..

It is not the main proble about today .Writing in english will give me some chance.

1:Down Load JDK 5,The lastest is JDK 6, you can get from system/Systmemanger/PackageManger.But there is no JDK5 Resource.

So you need to download it from the sun. I can confirm that there is it in

what i got is : jdk-1_5_0_22-linux-i586.bin

Do you have got what you need ?

2:Put jdk-1_5_0_22-linux-i586.bin file to my /home/administrator/java directory.

3:in Command Line Interface ,you need get in the file directory /home/administrator/java

sudo chmod u+x jdk-1_5_0_22-linux-i586.bin

./jdk-1_5_0_22-linux-i586.bin

then you see some readme about sun …….

more and more .

将会出现字幕,持续按回车键,直至屏幕显示要求输入yes/no,此时输入y回车,将会把jdk解压到文件夹,,得到jdk1.6.0_12目录。此时,jdk已安装完毕,下面进行配置执行

代码: sudo vi /etc/profile

在profile中修改,出现如下部分

引用: # Set JAVA (这里是注释 不是SHELL命令)JAVA_HOME=/home/administrator/下载/jdk1.5.0_22JRE_HOME=/home/administrator/下载/jdk1.5.0_22/jrePATH=$JAVA_HOME/bin:$JAVA_HOME/jre/bin:$PATHCLASSPATH=.:$CLASSPATH:$JAVA_HOME/lib:$JAVA_HOME/jre/libexport JAVA_HOME JRE_HOME PATH CLASSPATH export PATH

执行

代码: sudo source /etc/profile

此时,环境变量设置成功(设置环境变量的方法很多,不一一列举)由于ubuntu中可能会有默认的jdk,如openjdk,所以,为了使默认使用的是我们安装的jdk,还要进行如下工作。执行

代码: update-alternatives –install /usr/bin/java java /usr/lib/jvm/java/jdk1.6.0_12/bin/java 300update-alternatives –install /usr/bin/javac javac /usr/lib/jvm/java/jdk1.6.0_12/bin/javac 300

通过这一步将我们安装的jdk加入java选单。然后执行

代码: update-alternatives –config java

通过这一步选择系统默认的jdk这样,再在shell中输入

代码: java -version

时,就会显示系统使用的java是sun的java。

读书破万卷,下笔如有神。

Ubuntu 10.04 下安装 JDK5

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