JFileChooser Setting The Selected File In Java

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import java.io.File;
import javax.swing.JFileChooser;

public class JavaJFileChooserSelectFile {
	
	public static void main(String[] argv) throws Exception{
	    JFileChooser chooser = new JFileChooser();
	    File f = new File(new File("filename.txt").getCanonicalPath());
	    chooser.setSelectedFile(f);
	    chooser.showOpenDialog(null);
	    chooser.getSelectedFile();
	  }
}
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