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1.java.sun.com/j2se/1.4.2/download.html">http://java.sun.com/j2se/1.4.2/download.html ÏÂÔØÒ»¸öLinux PlatformµÄJDK£¬½¨ÒéÏÂÔØRPM×Ô½âѹ¸ñʽµÄ£¨RPM in self-extracting file£¬j2sdk-1_4_2_06-linux-i586-rpm.bin£©£» 
2. ÉÏÔØµ½Linux·þÎñÆ÷ÉÏ£¬ÔÚshellÏÂÖ´ÐÐÃüÁ
[root@LinuxServer rpm]# chmod 755 j2sdk-1_4_2_06-linux-i586-rpm.bin
[root@LinuxServer rpm]# ./j2sdk-1_4_2_06-linux-i586-rpm.bin 
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Sun Microsystems, Inc.
Binary Code License Agreement
for the
JAVATM 2 SOFTWARE DEVELOPMENT KIT (J2SDK), STANDARD
EDITION, VERSION 1.4.2_X
...
Do you agree to the above license terms? [yes or no]yes
Unpacking...
Checksumming...
0
0
Extracting...
UnZipSFX 5.40 of 28 November 1998, by Info-ZIP (Zip-Bugs@lists.wku.edu).
inflating: j2sdk-1_4_2_06-linux-i586.rpm
Done.
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3. ³ÌÐò»á×Ô¶¯Éú³ÉÒ»¸öj2sdk-1_4_2_06-linux-i586.rpmÎļþ£¬ÕâÊÇÖ÷³ÌÐò°ü£¬ÏÂÃæÀ´°²×°
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[root@LinuxServer rpm]#rpm -ivh j2sdk-1_4_2_06-linux-i586.rpm
Preparing... ########################################### [100%]
1:j2sdk ########################################### [100%]
4. ÉèÖû·¾³±äÁ¿
ͨ³£¶¼Ï²»¶ÓÃexportÃüÁîÖ±½ÓÔÚshellÏÂÉèÖÃ
[root@LinuxServer rpm]# export JAVA_HOME=/usr/java/j2sdk1.4.2_06
[root@LinuxServer rpm]# export CLASSPATH=.:$JAVA_HOME/lib/dt.jar:$JAVA_HOME/lib/
tools.jar
[root@LinuxServer rpm]# export PATH=$PATH:$JAVA_HOME/bin
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[root@LinuxServer rpm]


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