gistfile1.java

import javax.swing.JFileChooser;
import javax.swing.JOptionPane;
import javax.swing.UIManager;

public class FileFinder {

	public static void main(String[] args) throws Exception {

		// Makes the file chooser adopt the standard look for the system
		// on which the program is running.
		UIManager.setLookAndFeel(UIManager.getSystemLookAndFeelClassName());

		// Opens a file chooser that only displays directories.
		JFileChooser chooser = new JFileChooser();
		chooser.setFileSelectionMode(JFileChooser.DIRECTORIES_ONLY);
		
		String word;
		while (true) {
			// Displays a file chooser and determines what happened.
			int outcome = chooser.showOpenDialog(null);
			
			// If the user selected a file ...
			if (outcome == JFileChooser.APPROVE_OPTION) {

				// Gets a target word from the user.
				word = JOptionPane.showInputDialog("Enter file name: ");
				if (word != null) {
					JOptionPane.showMessageDialog(null, "hi");
					System.exit(0);
				}
				else {
					int stringOption = JOptionPane.YES_NO_OPTION;
					JOptionPane.showConfirmDialog(null, "Do you want to continue?", null, JOptionPane.YES_NO_OPTION);
					if(stringOption != JOptionPane.YES_OPTION) {
						System.exit(0);
					}
				}
			} else {
				int stringOption = JOptionPane.showConfirmDialog(null, "Do you want to continue?", null, JOptionPane.YES_NO_OPTION);
				if(stringOption != JOptionPane.YES_OPTION) {
					System.exit(0);
				}
			}
		}
	}

}