{"id":1502,"date":"2012-08-14T22:33:24","date_gmt":"2012-08-14T20:33:24","guid":{"rendered":"http:\/\/www.tutego.de\/blog\/javainsel\/?p=1502"},"modified":"2012-08-15T12:35:23","modified_gmt":"2012-08-15T10:35:23","slug":"snippet-kalender-des-jahrs-ausgeben","status":"publish","type":"post","link":"https:\/\/www.tutego.de\/blog\/javainsel\/2012\/08\/snippet-kalender-des-jahrs-ausgeben\/","title":{"rendered":"Snippet: Kalender des Jahres ausgeben"},"content":{"rendered":"

Angeregt durch den Compact Calendar <\/strong>(http:\/\/davidseah.com\/compact-calendar\/<\/a>) wollte ich etwas \u00e4hnliches in meine Webanwendung einbauen, sodass das Ergebnis tabellenartig wie https:\/\/docs.google.com\/spreadsheet\/ccc?key=0AkyxK00VLnSidEl1SS1sZjZiVlpuRnJIY1JmUW9IRHc#gid=0<\/a> formatiert wird.<\/p>\n

import java.text.DateFormatSymbols;\nimport java.util.*;\n\npublic<\/span> class<\/span> PrintCalender\n{\n  public<\/span> static<\/span> class<\/span> CalLine\n  {\n    int<\/span> weekOfYear; \n    int<\/span> month = -1;  \/\/ 0 <= month <= 11 <\/span>\n    int<\/span>[] day = { -1, -1, -1, -1, -1, -1, -1 }; \n  }\n\n  public<\/span> static<\/span> List<CalLine> calenderOfTheYear( int<\/span> year )\n  {\n    Calendar cal = new<\/span> GregorianCalendar( year, 1, 1 );\n\n    List<CalLine> lines = new<\/span> ArrayList<>();\n    CalLine line = new<\/span> CalLine();\n\n    for<\/span> ( int<\/span> dayOfYear = 1; dayOfYear <= cal.getActualMaximum( Calendar.DAY_OF_YEAR ); dayOfYear++ ) {\n      cal.set( Calendar.DAY_OF_YEAR, dayOfYear );\n      line.weekOfYear = cal.get( Calendar.WEEK_OF_YEAR ); \/\/ Set several times, thats ok<\/span>\n\n      int<\/span> dayOfMonth = cal.get( Calendar.DAY_OF_MONTH );\n      int<\/span> dayOfWeek  = cal.get( Calendar.DAY_OF_WEEK );\n\n      if<\/span> ( dayOfMonth == 1 )\n        line.month = cal.get( Calendar.MONTH );\n\n      line.day[dayOfWeek - 1] = dayOfMonth;\n\n      if<\/span> ( dayOfWeek == Calendar.SUNDAY ) {\n        lines.add( line );\n        line = new<\/span> CalLine();\n      }\n    }\n    lines.add( line );\n    return<\/span> lines;\n  }\n  \n  public<\/span> static<\/span> void<\/span> main( String[] args )\n  {\n    List<CalLine> lines = calenderOfTheYear( 2012 );\n\n    String[] monthNames = new<\/span> DateFormatSymbols( Locale.GERMANY ).getMonths();\n    System.out<\/span>.println( \"KW        Mo Do Mi Do Fr Sa So\"<\/span> ); \/\/ to lazy for DateFormatSymbols here...<\/span>\n\n    for<\/span> ( CalLine l : lines ) {\n      String monthStr = (l.month == -1) ? \"   \"<\/span> : monthNames[ l.month ].substring( 0, 3 );\n      \/\/ Days are Sun, Mon, ..., Sat. Rearange to Mon, ..., Sun<\/span>\n      String s = String.format( \"%2d  %s   %(2d %(2d %(2d %(2d %(2d %(2d %(2d\"<\/span>,\n                                l.weekOfYear, monthStr,\n                                l.day[1], l.day[2], l.day[3], l.day[4], l.day[5], l.day[6], l.day[0] ).replace( \"(1)\"<\/span>, \"  \"<\/span> );\n      System.out<\/span>.println( s );\n    }\n  }\n}<\/pre>\n