Error: Main method not found in class

###执行java报错,没有发现主方法###
[root@localhost qf]# java Qf
Error: Main method not found in class Qf, please define the main method as:
public static void main(String[] args)
or a JavaFX application class must extend javafx.application.Application

###这里"main"拼错了,修改为"main"###
[root@localhost qf]# cat Qf.java
public class Qf{
public static void man (String[] args) {
System.out.println("Hello");
}
}

###重新编译并执行###
[root@localhost qf]# javac Qf.java
[root@localhost qf]# java Qf
Hello