鿴CentOSԴJDKǷѰװ

룺yum list installed |grep java

ԴװJDKжCentOSϵͳԴJava

жJDKļ룺yum -y remove java-1.7.0-openjdk*

жtzdata-java룺yum -y remove tzdata-java.noarch

  ʾΪCompleteжϡ

ע*ʾжصjava 1.7.0openjdkļ

CentOSϵͳǷ

ʹyumʽװҪJavaӦװļʴҪʹping磻磺ping ٶURLɡ

鿴yumеJavaװ

룺yum -y list java* 


ʹyumװJava

룺yum -y install java-1.7.0-openjdk* yumjava-1.7.0Ϊ 

  ʾΪCompleteװϡ

ע*ʾjava-1.7.0Java򶼰װϡ


鿴հװJava汾Ϣ

룺java -version ɲ鿴Java汾

룺javac ɲ鿴Javaı÷ԣ

 1ѯаװ汾

    rpm -qa | grep jdk

    2жopenjdk

    sudo yum -y remove java-1.6.0-openjdk