Ghi File trong GUI - Java
JFileChooser fc = new JFileChooser();
fc.showSaveDialog(null);
String tenFile = fc.getSelectedFile().getPath();
try{
File f = new File(tenFile);
if(!f.exists()){
PrintStream out = new PrintStream(f);
// ghi file thông qua đối tượng out.print như System.out.print
out.close();
}else System.out.println(" file da ton tai ");
}catch(Exception e){
System.out.println(e.getMessage());
}