[root@NB ok]# yum -y list java*Loaded plugins: fastestmirror, refresh-packagekit, securityLoading mirror speeds from cached hostfile * base: mirrors.yun-idc.com * extras: mirrors.yun-idc.com * updates: mirrors.yun-idc.comInstalled Packagesjava-1.6.0-openjdk.x86_64 1:1.6.0.35-1.13.7.1.el6_6 @anaconda-CentOS-201508042137.x86_64/6.7java-1.7.0-openjdk.x86_64 1:1.7.0.79-2.5.5.4.el6 @anaconda-CentOS-201508042137.x86_64/6.7Available Packagesjava-1.5.0-gcj.x86_64 1.5.0.0-29.1.el6 base java-1.5.0-gcj-devel.x86_64 1.5.0.0-29.1.el6 base java-1.5.0-gcj-javadoc.x86_64 1.5.0.0-29.1.el6 base java-1.5.0-gcj-src.x86_64 1.5.0.0-29.1.el6 base java-1.6.0-openjdk.x86_64 1:1.6.0.40-1.13.12.6.el6_8 updates java-1.6.0-openjdk-demo.x86_64 1:1.6.0.40-1.13.12.6.el6_8 updates java-1.6.0-openjdk-devel.x86_64 1:1.6.0.40-1.13.12.6.el6_8 updates java-1.6.0-openjdk-javadoc.x86_64 1:1.6.0.40-1.13.12.6.el6_8 updates java-1.6.0-openjdk-src.x86_64 1:1.6.0.40-1.13.12.6.el6_8 updates java-1.7.0-openjdk.x86_64 1:1.7.0.121-2.6.8.1.el6_8 updates java-1.7.0-openjdk-demo.x86_64 1:1.7.0.121-2.6.8.1.el6_8 updates java-1.7.0-openjdk-devel.x86_64 1:1.7.0.121-2.6.8.1.el6_8 updates java-1.7.0-openjdk-javadoc.noarch 1:1.7.0.121-2.6.8.1.el6_8 updates java-1.7.0-openjdk-src.x86_64 1:1.7.0.121-2.6.8.1.el6_8 updates java-1.8.0-openjdk.x86_64 1:1.8.0.111-0.b15.el6_8 updates java-1.8.0-openjdk-debug.x86_64 1:1.8.0.111-0.b15.el6_8 updates java-1.8.0-openjdk-demo.x86_64 1:1.8.0.111-0.b15.el6_8 updates java-1.8.0-openjdk-demo-debug.x86_64 1:1.8.0.111-0.b15.el6_8 updates java-1.8.0-openjdk-devel.x86_64 1:1.8.0.111-0.b15.el6_8 updates java-1.8.0-openjdk-devel-debug.x86_64 1:1.8.0.111-0.b15.el6_8 updates java-1.8.0-openjdk-headless.x86_64 1:1.8.0.111-0.b15.el6_8 updates java-1.8.0-openjdk-headless-debug.x86_64 1:1.8.0.111-0.b15.el6_8 updates java-1.8.0-openjdk-javadoc.noarch 1:1.8.0.111-0.b15.el6_8 updates java-1.8.0-openjdk-javadoc-debug.noarch 1:1.8.0.111-0.b15.el6_8 updates java-1.8.0-openjdk-src.x86_64 1:1.8.0.111-0.b15.el6_8 updates java-1.8.0-openjdk-src-debug.x86_64 1:1.8.0.111-0.b15.el6_8 updates java_cup.x86_64 1:0.10k-5.el6 base java_cup-javadoc.x86_64 1:0.10k-5.el6 base java_cup-manual.x86_64 1:0.10k-5.el6 base javacc.x86_64 4.1-0.5.el6 base javacc-demo.x86_64 4.1-0.5.el6 base javacc-manual.x86_64 4.1-0.5.el6 base javassist.noarch 3.9.0-6.el6 base javassist-javadoc.noarch 3.9.0-6.el6 base