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view chapter9/WithPrintWriter.scala @ 0:b316eec6fa7a draft default tip
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author | Nobuyasu Oshiro <dimolto@cr.ie.u-ryukyu.ac.jp> |
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date | Tue, 08 Jan 2013 16:41:46 +0900 |
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import java.io.File import java.io.PrintWriter object WithPrintWriter { def withPrintWriter(file: File, op: PrintWriter => Unit) { val writer = new PrintWriter(file) try { op(writer) } finally { writer.close() } } def main(args: Array[String]) { withPrintWriter( new File("date.txt"), writer => writer.println(new java.util.Date) ) } }