1. yum list java*jdk-devel
java-1.6.0-openjdk-devel.x86_64
java-1.7.0-openjdk-devel.x86_64
java-1.8.0-openjdk-devel.x86_64
2. yum install java-1.7.0-openjdk-devel.x86_64
3. y
4. 설치 확인 : java -version
->
java version "1.7.0_95"
OpenJDK Runtime Environment (rhel-2.6.4.0.el6_7-x86_64 u95-b00)
OpenJDK 64-Bit Server VM (build 24.95-b01, mixed mode)
