title: .jar file is not working after being published from Eclipse
body: <p>I dont know what I did wrong, this is the first time Im publishing a java project, I just made a simple Hello World application and exported it when I tried to launch it, nothing happens.I tried doing the "java -jar helloworld2124.jar" command in command prompt but i get "Error: Unable to accesss jarfile helloworld2124.jar" message. I even tried doing the "java" command and it didnt show an error message. What should I do?</p>
  
  <p><code> public class Workkn1 {</p>
  
  <pre><code>public static void main(String[] args) {
  
      System.out.println("Hello World");
  
  
  
  }
  </code></pre>
  
  <p>}
  </code>
  <em> I tried the "java -jar yourfilename.jar" command but it keeps returning "Error: Unable to accesss jarfile helloworld2124.jar" in the cmd.</em></p>