Install JDK in Ubuntu 10.10 and configure eclipse to configure

 

Environment: ubuntu10.10
Download tool: JDK, version: jdk-6u23-linux-i586.bin. (Baidu: Marshal Java)
Eclipse, eclipse-java-helios-sr2-linux-gtk.tar.gz
1. Install JDK manually
The new cannot be installed, sudo apt-Get sun-java6-jdk can not, only manual
Download JDK
Terminal
CD to enter the downloaded JDK folder, and then run the CP command to copy the file to/usr/local/lib
Then execute

sudo chmod +x jdk-6u24-linux-i586.bin sudo ./jdk-6u24-linux-i586.bin

After the last command is executed, a "JDK 1.6.0 _ 04" directory is added under the current directory, which is all the JDK files after the jdk-6u4-linux-i586.bin is decompressed;
Configure Environment Variables
$ Sudo gedit/etc/environment
Write the following two lines in the Text Editor:
Path = "/usr/local/lib/jdk1.6.0 _ 24/bin" (if it already exists, separate it with a colon)
Classpath = "/usr/local/lib/jdk1.6.0 _ 24/lib"
Java_home = "/usr/local/lib/jdk1.6.0 _ 24"
Because ubuntu may have a default JDK, such as openjdk, we need to perform the following work to make the JDK installed by default.
Run

$ sudo update-alternatives --install /usr/bin/java java /usr/local/lib/jdk1.6.0_24/bin/java 300$ sudo update-alternatives --install /usr/bin/javac javac /usr/local/lib/jdk1.6.0_24/bin/javac 300

//In opensusesudo /usr/sbin/update-alternatives --install "/usr/bin/java" "java" "/usr/local/lib/jdk1.6.0_24/bin/java" 40000

sudo /usr/sbin/update-alternatives --install "/usr/bin/javac" "javac" "/usr/local/lib/jdk1.6.0_29/bin/javac" 40000

In this step, add the installed JDK to the Java menu.
Then execute
Code:
Update-alternatives -- config Java
In this step, select the default JDK
Log out, terminal, and run Java-version. Display:
Java version "1.6.0 _ 24"
Java (TM) se Runtime Environment (build 1.6.0 _ 24-b07)
Java hotspot (TM) Client VM (build 19.1-b02, mixed mode, sharing)
Configuration successful.

Install eclipse
Download the file, decompress it, and copy the file to the Java directory.
Sudo mV/home/empty/download/Eclipse/usr/local/lib/
Double-click eclipse to go to the next step .... OK
Or
Terminal
Sudo apt-Get eclipse-palmform

Configure
1. Download sun wtk (Wireless Toolkit)

Http://java.sun.com/products/sjwtoolkit/download.html

2. Install sun wtk
#./Sun_java_wireless_toolkit-2_5_2-linux.bin
Terminal command:
1). Enter the bin directory
2). Execute the command: sudo chmod + x/usr/local/sun_java_wireless_toolkit-2_5_2-ml-linux.bin
(Grant the current user the permission to run the. binfile)

3). Execute the command: sudo./sun_java_wireless_toolkit-2_5_2-ml-linux.bin (for installation)
Sudo RM sun_java_wireless_toolkit-2_5_2-ml-linux.bin (delete installer)

Copy eclipseme.feature_1.6.8_site.zip to the eclipse root directory.
Then start installing the "j2_plug-in compressed package": Help-> softwareupdate-> Find and install-> search for new features to install-> New archived site... -> Select “eclipseme.feature_1.6.8_site.zip, and click "open"-> OK-> finish-> next-> Accept... -> Next-> all install... -> Yes. Restart eclipse.

4. Configure wtk in eclipse

Start eclipse, window-> preferences to enter the Configuration window.
Select the j2-based menu and enter the wtk installation directory in the wtk root file.
J2-> device management-> Import, set the directory item to/home/user/homework/wtk2.2/bin, and refresh the refresh button,
Confirm finsh and select your preferred mobile phone skin.
Complete the following configurations in the wtk installation directory:/home/user/homework/wtk2.2. Done!

Test procedure:
New project-> j2e-sre New Class "hello"
1. Import javax. microedition. lcdui. display;
2. Import javax. microedition. lcdui. form;
3. Import javax. microedition. MIDlet. MIDlet;
4. Import javax. microedition. MIDlet. midletstatechangeexception;
5. Public class Hello extends MIDlet {
6. Display display;
7. Public Hello (){
8. Super ();
9. Display = display. getdisplay (this );
10 .}
11. Protected void destroyapp (Boolean arg0) throws midletstatechangeexception {
12 .}
13. Protected void pauseapp (){
14 .}
15. Protected void Startapp () throws midletstatechangeexception {
16. Form = new form ("another Hello World ");
17. Form. append ("Hello world! ");
18. display. setcurrent (form );
19 .}
20 .}
Running successfully ~

 
2011-3-7