Java Novice Note 1

Hello.java File//class declaration public class hello{    //Declaration method Main program entry public    static void Main (string[] args) {        System.out.println ("Hello world!");}    } Compile command C:\>javac c:\users\administrator\desktop\hello.java//javac  path + file name. java//javac-d d:\  C:\Users\ Administrator\desktop\hello.java//-d Specify the location of the class file//Run command C:\>java-classpath C:\Users\Administrator\Desktop\ hello//format Java-classpath path ' class name (do not extend)//C:\>JAVA-CP C:\Users\Administrator\Desktop\Hello.java

1.cd/d+ path, switch to the folder where Hello.java is located

2.javac Hello.java

3.java Hello

There is an exception: Hello is not found in this class, is Hello

Java Novice Note 1