Question

This question has been asked before but I still cannot figure whats wrong for some reason.
I got a class named NewClass in package syntaxtest in file src. From src path I type :

javac src/syntaxtest/NewClass.java

and the class is compiled and I can see NewClass.class in syntaxtest folder. Now from that same path or even the same folder with NewClass.class, I can’t figure out how to run the class from terminal. I have made many different attempts but ether I get

ClassDefNotFound or ClassDefNotFound (wrong name : syntaxtest/NewClass)

Answer 1

Try “java -cp src syntaxtest.NewClass“.

That is, if you have a folder “src” which contains the subfolder (package) “syntaxtest” and the class “NewClass” is in “package syntaxtest”, then the above command will work.

$ ls src/syntaxtest
NewClass.java
$ cat src/syntaxtest/NewClass.java
package syntaxtest;
public class NewClass {
  public static void main(String args[]) {
    System.out.println("Hello, World!");
  }
}
$ javac src/syntaxtest/NewClass.java
$ java -cp src syntaxtest.NewClass
Hello, World!