Open a PDF file using JAVA

/*
* Open a PDF file in new window using JAVA
*/
import java.awt.Desktop;
import java.io.File;

public class OpenPDF {
    public static void main(String[] args) {
      try {
        File pdfFile = new File("c:\\sample.pdf"); //give your PDF location
        if (pdfFile.exists()) {

            if (Desktop.isDesktopSupported()) {
                Desktop.getDesktop().open(pdfFile);
            } else {
                System.out.println("Awt Desktop is not supported");
            }

        } else {
            System.out.println("File is not exists!");
        }

        System.out.println("Done");

      } catch (Exception ex) {
        ex.printStackTrace();
      }

    }
}

Output
~~~~~~
Done

Note: it open a PDF file in separate window