object WithPrintWriter2 {

    def main(args: Array[String]) {
	val fiel =new File("data.txt")
	withPrintWriter(file) {
	    writer => writer.println(new java.util.Data)
	}
    }

    def withPrintWriter(file: File)(op: PrintWriter => Unit) {
	val writer = new PrintWriter(file)
	try {
	    op(writer)
	} finally {
	    writer.close()
	}
    }
}