ubuntu java version change

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1. confrim java version
java -version
java version "1.6.0_22"
Java(TM) SE Runtime Environment (build 1.6.0_22-b04)
Java HotSpot(TM) Server VM(build 17.1-b03, mixed mode)

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2. find jdk
apt-cache search jdk
sun-java5-bin - Sun Java(TM) Runtime Environment (JRE) 5.0 (architecture dependent files)
sun-java5-demo - Sun Java(TM) Development Kit (JDK) 5.0 demos and examples
sun-java5-doc - Sun JDK(TM) Documention -- integration installer
sun-java5-jdk - Sun Java(TM) Development Kit (JDK) 5.0
sun-java5-jre - Sun Java(TM) Runtime Environment (JRE) 5.0 (architecture independent files)
sun-java5-source - Sun Java(TM) Development Kit (JDK) 5.0 source files
sun-java6-bin - Sun Java(TM) Runtime Environment (JRE) 6 (architecture dependent files)
sun-java6-demo - Sun Java(TM) Development Kit (JDK) 6 demos and examples
sun-java6-doc - Sun JDK(TM) Documention -- integration installer
sun-java6-javadb - Java(TM) DB, Sun Microsystems' distribution of Apache Derby
sun-java6-jdk - Sun Java(TM) Development Kit (JDK) 6
sun-java6-jre - Sun Java(TM) Runtime Environment (JRE) 6 (architecture independent files)
sun-java6-source - Sun Java(TM) Development Kit (JDK) 6 source files

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3. install jdk
apt-get install sun-java6-jdk

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4. check java version
java -version

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5. change java version
wkyoon@wkyoon-desktop1:~$ sudo update-alternatives --config java

java을(를) 제공하는 대체항목이 3개 있습니다.

  선택번호     대체항목
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          1    /usr/lib/jvm/java-1.5.0-sun/jre/bin/java
*+        2    /usr/lib/jvm/java-6-openjdk/jre/bin/java
          3    /usr/lib/jvm/java-6-sun/jre/bin/java

기본 사항[*]을 사용하려면 엔터, 다른 것을 사용하려면 번호를 입력하십시오: 3
'/usr/lib/jvm/java-6-sun/jre/bin/java' 사용해서 java 제공하는 중.

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