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# rpm -qa|grep jdk ← ²é¿´jdkµÄÐÅÏ¢»òÖ±½ÓÖ´ÐÐ
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# rpm -q jdk
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# java -version
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<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
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# cd /usr/java£¨mkdir java –´ËĿ¼ÐèÒª´´½¨£©
¢Ùjdk-1_5_0_16-linux-i586-rpm.binÎļþ°²×°
# chmod 777 jdk-1_5_0_16-linux-i586-rpm.bin ← ÐÞ¸ÄΪ¿ÉÖ´ÐÐ
# ./jdk-1_5_0_16-linux-i586-rpm.bin ← Ñ¡ÔñyesͬÒâÉÏÃæµÄÐÒé
# rpm -ivh jdk-1_5_0_16-linux-i586.rpm ← Ñ¡ÔñyesÖ±µ½°²×°Íê±Ï
¢Újdk-1_5_0_16-linux-i586.binÎļþ°²×°
# chmod a+x jdk-1_5_0_16-linux-i586.bin ← ʹµ±Ç°Óû§ÓµÓÐÖ´ÐÐȨÏÞ
# ./jdk-1_5_0_16-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/jdk1.5.0_16
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># source /etc/profile Ö´ÐкóÉúЧ
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#vi hello.java
public class hello {
public static void main(String args [ ])
{
System.out.println("Hello World!");
System.out.println("2009/2/19");
}
}
# javac hello.java
# java hello
Hello World!
2009/2/19
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eg:
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ca.setString(1,username);
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