Source Code : Validate a filename from a JFileChooser

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Validate a filename from a JFileChooser

     

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

public class Main {
  public static void main(String s[]) {
    JFileChooser chooser = new JFileChooser();
    int rc = chooser.showOpenDialog(null);
    while (rc == JFileChooser.APPROVE_OPTION
        && !chooser.getSelectedFile().getName().endsWith(".java")) {
      JOptionPane.showMessageDialog(null, "The file "
          + chooser.getSelectedFile() + " is not java source file.",
          "Open Error", JOptionPane.ERROR_MESSAGE);
      rc = chooser.showOpenDialog(null);
    }
  }
}

   
    
    
    
    
  

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