1,CentOSにJDKをインストール
$ yum search jdk
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=============================== N/S Matched: jdk ===============================
java-1.6.0-openjdk.x86_64 : OpenJDK Runtime Environment
java-1.6.0-openjdk-demo.x86_64 : OpenJDK Demos
java-1.6.0-openjdk-devel.x86_64 : OpenJDK Development Environment
java-1.6.0-openjdk-javadoc.x86_64 : OpenJDK API Documentation
java-1.6.0-openjdk-src.x86_64 : OpenJDK Source Bundle
java-1.7.0-openjdk.x86_64 : OpenJDK Runtime Environment
java-1.7.0-openjdk-demo.x86_64 : OpenJDK Demos
java-1.7.0-openjdk-devel.x86_64 : OpenJDK Development Environment
java-1.7.0-openjdk-javadoc.noarch : OpenJDK API Documentation
java-1.7.0-openjdk-src.x86_64 : OpenJDK Source Bundle
ldapjdk-javadoc.x86_64 : Javadoc for ldapjdk
icedtea-web.x86_64 : Additional Java components for OpenJDK
ldapjdk.x86_64 : The Mozilla LDAP Java SDK
javaでの開発を行う場合は、以下のどちらかをインストールする。
java-1.6.0-openjdk-devel.x86_64 : OpenJDK Development Environment
java-1.7.0-openjdk-devel.x86_64 : OpenJDK Development Environment
java-1.6
yum install java-1.6.0-openjdk-devel
java-1.7
yum install java-1.7.0-openjdk-devel
どちらかをインストールにして完了