import java.io.File; import java.io.FileWriter; import java.io.IOException; import java.util.Calendar; import java.util.Date; calendar right now=calendar.getinstance (; Date d1=rightNow.getTime (; simpledateformatsdf1=newsimpledateformat (yyyymmdd hhmmss ); stringnowtime=(SDF1.format(D1 ) ).toString ); filedir=newfile(d:/ljj ); dir.mkdirs (; stringmakeboatslogstr=' d :/ljj/' nowtime ' makeboatslog.txt '; filemakeboatslog=new file (makeboatslogstr; FileWriter fw; fw=newfilewriter(makeboatslog,true ); String lineEnd='rn '; fw.write(nowtimelineend ); fw.flush (; fw.close (;