Windows command line run HelloWorld

1 Installing the JDK
2 Configuring environment variables, configuring Java_home, Classpath, and path
Java_home=c:\program files\java\jdk1.8.0_51
Classpath=%java_home%\lib;%java_home%\lib\tools.jar path= ...; %java_home%\bin;3 Writing Helloworld.java

 Public class helloworld{    publicstaticvoid  main (string[] args) {        System.out.println ("Hello world!" );    }}

4 Compile, execute Javac HelloWorld. java, generate HelloWorld. class Note: if inconsistent file name and class name, you will be prompted when you run Javac: hellowrold.java:1: Error: Class HelloWorld is public, should be declared in a file named Helloworld.java 5 run, execute Java HelloWorld

Windows command line run HelloWorld