Create Jar File In JAVA

How to Make A Jar File In JAVA

Step 1: Consider a class

AwtExample.java

 
import java.awt.Frame;
import java.awt.Label;
import java.awt.event.WindowAdapter;
import java.awt.event.WindowEvent;
 
public class AwtExample {
 
 public static void main(String[] args) {
 
  Frame f = new Frame();
  f.addWindowListener(new WindowAdapter() {
   public void windowClosing(WindowEvent e) {
    System.exit(0);
   }
  });
  f.add(new Label("This JAR file is executable!"));
  f.setSize(500, 500);
  f.setVisible(true);
 }
}

Step 2: Create a manifest file manifest.txt
      

c:\test\classes\manifest.txt

 c:\test\classes\com\AwtExample.class

inside manifest file:
 Main-Class: AwtExample

Uses Main-Class as the entry point of this Jar file, when you double click on this Jar file, the “AwtExample.class” main() method will be launched.

Step 3: Create Jar File
Create a Jar file by adding “AwtExample.class” and “manifest.txt” files together.

jar -cvfm AwtExample.jar manifest.txt com/awt/*.class

Open cmd and type: You can issue following command to create a “AwtExample.jar.
jar -cvfm AwtExample.jar manifest.txt com/*.class