Java I/O 01. The File class - checking file properties and attributes
We will cover java's File class in this tutorial.
The following code may have been modified to meet Youtube's guidelines. Please go to • Java I/O 00. Input/Output Basics Setup to download the actual files.
/**
GUI File Chooser
You can also have the user choose a file through a GUI
This GUI is from javax.swing.JFileChooser
**/
import javax.swing.JFileChooser;
import java.util.Scanner;
import java.io.File;
public class GUIFileChooser {
public static void main(String[] args) throws Exception {
JFileChooser fileChooser = new JFileChooser();
if (fileChooser.showOpenDialog(null) == JFileChooser.APPROVE_OPTION) {
File openedFile = fileChooser.getSelectedFile();
Scanner in = new Scanner(openedFile);
System.out.println("Printing contents of the chosen file: ");
while(in.hasNext()) {
System.out.println(in.nextLine());
}
in.close();
} else {
System.out.println("File not selected");
System.exit(1);
}
}
}