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<1># rpm -qa|grep jdk ← ²é¿´jdkµÄÐÅÏ¢»òÖ±½ÓÖ´ÐÐ
»ò
# rpm -q jdk
»ò
# java -version
<2># rpm -qa | grep gcj ← È·ÈÏgcjµÄ°æ±¾ºÅ
<3># yum -y remove java-1.4.2-gcj-compat ← жÔØgcj
µÚ¶þ²½£º°²×°JDK
<1>´ÓSUNÏÂÔØjdk-1_5_0_14-linux-i586-rpm.bin»òjdk-1_5_0_14-linux-i586.bin
ÔÚ/usrÏÂн¨javaÎļþ¼Ð£¬½«°²×°°ü·ÅÔÚ/usr/javaĿ¼ÏÂ
# mkdir /usr/java
<2>°²×°JDK
# cd /usr/java
¢Ùjdk-1_5_0_14-linux-i586-rpm.binÎļþ°²×°
# chmod 777 jdk-1_5_0_14-linux-i586-rpm.bin ← ÐÞ¸ÄΪ¿ÉÖ´ÐÐ
# ./jdk-1_5_0_14-linux-i586-rpm.bin ← Ñ¡ÔñyesͬÒâÉÏÃæµÄÐÒé
# rpm -ivh jdk-1_5_0_14-linux-i586.rpm ← Ñ¡ÔñyesÖ±µ½°²×°Íê±Ï
¢Újdk-1_5_0_14-linux-i586.binÎļþ°²×°
# chmod a+x jdk-1_5_0_14-linux-i586.bin ← ʹµ±Ç°Óû§ÓµÓÐÖ´ÐÐȨÏÞ
# ./jdk-1_5_0_14-linux-i586.bin ← Ñ¡ÔñyesÖ±µ½°²×°Íê±Ï
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<1># vi /etc/profile
<2>ÔÚ×îºó¼ÓÈëÒÔϼ¸ÐУº
export JAVA_HOME=/usr/java/jdk1.6.0_10
export CLASSPATH=.:$JAVA_HOME/jre/lib/rt.jar:$JAVA_HOME/lib/dt.jar:$JAVA_HOME/lib/tools.jar
export PATH=$PATH:$JAVA_HOME/bin
<3># reboot ← ÖØÆô»úÆ÷ÅäÖÃÉúЧ
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