在netbeans中创建可运行的jar文件时遇到问题吗？

Question

Ive been searching for a couple of days now, and so i decided to turn to the community as a last resort! forgive me if this has been answered before, i have not found anything on it.

For a challenge issued from my computer science teacher for homework, I created a program that finds the absolute path for a specific directory(The Desktop in this case). It then creates a file on the desktop with the absolute desktop path written inside of it and opens a JOptionPane to confirm it has found the directory. I then proceeded to create a runnable jar file by going to "Run>Clean and build project, but when I go to dist and press "Open With Java", it does not run. I understand my code may be inefficient, or it might be "the wrong way to do this", but I would like to find the solution to this problem. I do not know whether my code is necessary, so Ill add it in below:

package FileExplorerandFinder;

import java.io.File;
import java.io.FileNotFoundException;
import java.io.PrintWriter;
import javax.swing.JOptionPane;

/**
 *
 * @author johnson.william2
 */
public class idk {

static PrintWriter p;
public static boolean onoff = true;

public static void displayFiles(File files[]) throws FileNotFoundException {
    if (files == null) {
        return;
    }
    for (int i = 0; i < files.length; i++) {
        if (onoff == true) {
            if (files[i].isDirectory()) {
                if (files[i].getAbsolutePath().contains("c:\\Users\\") && files[i].getAbsolutePath().contains("Desk") && !files[i].getAbsolutePath().contains("All Users") && !files[i].getAbsolutePath().contains("Default") && !files[i].getAbsolutePath().contains("Public") && !files[i].getAbsolutePath().contains("AppData")) {
                    onoff = false;
                    int a = i;
                    p = new PrintWriter(new File(files[i].getAbsolutePath() + "\\FileIndex.txt"));
                    p.println(files[i].getAbsolutePath());
                    p.close();
                    JOptionPane.showMessageDialog(null, files[i].getAbsolutePath());
                }
                displayFiles(files[i].listFiles());
            }
        }
    }
}

public static void main(String[] args) throws Exception {
    p = new PrintWriter(new File("c:FileIndex.txt"));
    File afile = new File("c:\\");
    File info[] = afile.listFiles();
    displayFiles(info);
}
}

UPDATE: I figured out the problem searching through the stack overflow questions a couple more hours. The fix ended up being: (Right click the project, Properties, Run, Main Class) the main class was incorrectly selected for some odd reason, no reason as to why it was this way, but I am happy it is fixed. Thanks for the responses guys! Much appreciated.

Answer 1

Follow the link here How to run Java Swing Application outside IDE to add the swing library and build the project.

Then using the command line :

java -jar "your jar location E.g. C:\Project\dist\Application.jar"