Install JDK manually in Ubuntu

Ubuntu is installed, and my Java development environment is installed. JDK is installed first. Google, the method to install JDK is

Sudo apt-get install sun-java5-jre sun-java5-jdk

I did the same, but I don't know why the network is so slow. Why is this 8-), so I decided to install JDK manually.

1. Download a JDK jdk-1_5_0_17-linux-i586.bin under Linux from Sun's website
2. My JDK installation directory is in/usr/java
3. Execute./jdk-1_5_0_17-linux-i586.bin on the terminal
4. Run mv jdk1.5.0 _ 17 // usr/java on the terminal
5. Configure JAVA_HOME and CLASSPATH and run sudo gedit/etc/profile to add
   • # Set java environment
   • Export JAVA_HOME =/usr/java/jdk1.5.0 _ 17
   • Export PATH = $ JAVA_HOME/bin: $ PATH
   • Export CLASSPATH =.: $ JAVA_HOME/lib/dt. jar: $ JAVA_HOME/lib/tools. jar
6. Save the file and restart Ubuntu. Run java-version on the terminal after startup. If the following information appears, the JDK is successfully installed.
   • Java (TM) 2 Runtime Environment, Standard Edition (build 1.5.0 _ 17-b04)
     Java HotSpot (TM) Server VM (build 1.5.0 _ 17-b04, mixed mode)

So far, JDK manual installation is complete.

Then, decompress the downloaded linux version Eclipse3.42 to/usr/java, and install Eclipse. Then install the Eclipse plug-in I downloaded.

OK. You can proceed with Java development.