linux install jdk

文章目录

1. 1. download
2. 2. delete default jdk
3. 3. extract
4. 4. move to /user/lib/java
5. 5. config
6. 6. excute
7. 7. validate

install jdk

download

download jdk
chose Linux x64 172.84 MB jdk-8u60-linux-x64.tar.gz

delete default jdk

extract

tar -zxvf jdk-8u60-linux-x64.tar.gz

move to /user/lib/java

mv ./jdk1.8.0_60 /usr/lib/java/jdk1.8.0_60

config

vi /etc/profile

# java config
export JAVA_HOME=/usr/lib/java/jdk1.8.0_60
export CLASSPATH=.:$JAVA_HOME/jre/lib/rt.jar:$JAVA_HOME/lib/dt.jar:$JAVA_HOME/lib/tools.jar
export PATH=$PATH:$JAVA_HOME/bin

excute

source /etc/profile

validate

java -version

create a java file

vi Hello.java

public class Hello{
  public static void main(String args[]){
    System.out.println(" Hello Linux, I'm Java!");
  }
}

compile excute

javac Hello.java
java Hello

bingo