无法从命令行执行Java代码

Question

Hello my jdk is well installed in:D:\\java on my computer my path is : D:\\oracle\\product\\10.2.0\\db_1\\bin;%SystemRoot%\\system32;%SystemRoot%;%SystemRoot%\\System32\\Wbem;%SYSTEMROOT%\\System32\\WindowsPowerShell\\v1.0\\;C:\\Program Files (x86)\\apache-maven\\bin;C:\\Program Files (x86)\\apache-tomcat\\bin;C:\\Program Files (x86)\\Skype\\Phone\\;D:\\java\\bin;D:\\jboss-as-7.1.3.Final\\bin;C:\\Program Files\\TortoiseSVN\\bin;E:\\formation\\Essais\\Maven\\apache-maven-3.5.0-bin\\apache-maven-3.5.0\\bin

my Java_Home :D:\\java my little program is in :E:\\Zoo.java

my program is completely:

public class Zoo {
    public static void main(String[] args) {
        System.out.println("Hello");
    }
}

in the command prompt i type this : javac Zoo.java

I don't get "Hello": please will like to know why and what to do

Answer 1

Compile it with javac Zoo.java and run it with java Zoo . From the comments :-

Please is there a way to compile and run it at once?

No , Java is both compiled and interpreted.