java

Ubuntu 15.10 按照 java8

参考 How to Install JAVA 8 (JDK 8u72) on Ubuntu & LinuxMint Via PPA

$ sudo add-apt-repository ppa:webupd8team/java
$ sudo apt-get update
$ sudo apt-get install oracle-java8-installer
$ sudo apt-get install oracle-java8-set-default

验证方法

$ java -version

java version "1.8.0_72"

Hello World

$ cat Main.java

public class Main{
    public static void main(String[] args){
        System.out.println("Hello world!");

    }
}

编译

$ javac Main.java
test $ ls
Main.class  Main.java
test $ java Main
Hello world!