I am trying to prompt "open file window" from command prompt in java and planning to take that selected file as input file instead of
FileInputStream fis=new FileInputStream(args[0]);
but not succeeded yet, please some tell me how to do it in command prompt in java.
You can use a JFileChooser to be able to select a file from a dialog box.
Assuming you want to launch it outside a Java Swing application, you could proceed as next:
final JFileChooser fc = new JFileChooser();
// Open the dialog using null as parent component if you are outside a
// Java Swing application otherwise provide the parent component instead
int returnVal = fc.showOpenDialog(null);
if (returnVal == JFileChooser.APPROVE_OPTION) {
// Retrieve the selected file
File file = fc.getSelectedFile();
try (FileInputStream fis = new FileInputStream(file)) {
// Do something here
}
}
More details about How to Use File Choosers
