ubuntu 또는 kubuntu 에서 Sun Java JDK 1.6 설치

1. 인터넷 브라우저를 열어, SDN Home 의 Download Center 에서 Download Java SE Development Kit 6u21 for Linux, Multi-language 를 실행한다.
2. jdk-6u21-linux-i586.bin 이 저장되면,
3. 터미널 창을 열어 다음을 실행한다.
4. 압축파일이 저장된 Directory 로 이동한다.
snjee@snjee-kubuntu:~$ cd setupapps
snjee@snjee-kubuntu:~$ sudo mv jdk-6u21-linux-i586.bin /usr/local/

snjee@snjee-kubuntu:~$ sudo chmod a+x /usr/local/jdk-6u21-linux-i586.bin
snjee@snjee-kubuntu:~$ sudo ./jdk-6u21-linux-i586.bin

[아래는 압축이 풀리고 마지막에 표시되는 Comment 부분이다.]
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여기까지 압축이 풀리면 /usr/local/jdk1.6.0_21 Directory 가 생긴다.
다음은 설정 과정이다.

snjee@snjee-kubuntu:/usr/local$ sudo update-alternatives --install "/usr/bin/java" "java" "/usr/local/jdk1.6.0_21/jre/bin/java" 1
snjee@snjee-kubuntu:/usr/local$ sudo update-alternatives --config java
java을(를) 제공하는 대체항목이 7개 있습니다.
선택번호 대체항목
-----------------------------------------------
1 /usr/lib/jvm/java-6-sun/jre/bin/java
2 /usr/bin/gij-4.2
3 /usr/bin/gij-4.3
4 /usr/lib/jvm/java-gcj/jre/bin/java
*+ 5 /usr/lib/jvm/java-6-openjdk/jre/bin/java
6 /etc/alternatives/kaffe-system/bin/java
7 /usr/local/jdk1.6.0_21/jre/bin/java
기본 사항[*]을 사용하려면 엔터, 다른 것을 사용하려면 번호를 입력하십시오: 7
'/usr/local/jdk1.6.0_21/jre/bin/java' 사용해서 java 제공하는 중.
snjee@snjee-kubuntu:/usr/local$ cd ~
snjee@snjee-kubuntu:~$ java --version
Unrecognized option: --version
Could not create the Java virtual machine.
snjee@snjee-kubuntu:~$ java -version
java version "1.6.0_21"
Java(TM) SE Runtime Environment (build 1.6.0_21-b06)
Java HotSpot(TM) Client VM (build 17.0-b16, mixed mode, sharing)
snjee@snjee-kubuntu:~$

여기까지 JDK 1.6.0 을 설치하는 과정을 정리하였다.