File Input Output Java

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import java.io.File;
import java.io.IOException;
public class Utils {
  /**
   * Creates a new empty temporary directory.
   */
  public static File createTmpDir() throws IOException {
      // create a temporary directory
      File tmpFile = File.createTempFile("tmp","tmp",new File("."));
      tmpFile.delete();
      tmpFile.mkdir();
      return tmpFile;
  }
}