Sams Teach Yourself Java™ in 24 Hours (Covering Java 7 and Android)

ptg7068951

306 HOUR 21: Reading and Writing XML Data

26: Element low = day.getFirstChildElement(“low”);

27: Element lowF = low.getFirstChildElement(“fahrenheit”);

28: // get current <icon>

29: Element icon = day.getFirstChildElement(“icon”);

30: // store values in object variables

31: lowTemp[current] = -1;

32: highTemp[current] = -1;

33: try {

34: lowTemp[current] = Integer.parseInt(lowF.getValue());

35: highTemp[current] =

➥Integer.parseInt(highF.getValue());

36: } catch(NumberFormatException nfe) {

37: // do nothing

38: }

39: conditions[current] = icon.getValue();

40: }

41: }

42:

43: public voiddisplay() {

44: for (int i = 0; i < conditions.length; i++) {

45: System.out.println(“Period “+ i);

46: System.out.println(“\tConditions: “+ conditions[i]);

47: System.out.println(“\tHigh: “+ highTemp[i]);

48: System.out.println(“\tLow: “+ lowTemp[i]);

49: }

50: }

51:

52: public static voidmain(String[] arguments) {

53: try{

54: WeatherStation station = new WeatherStation();

55: station.display();

56: } catch(Exception exception) {

57: System.out.println(“Error: “+ exception.getMessage());

58: }

59: }

60: }

The WeatherStationapplication, which requires no command-line argu-

ments, produces seven forecasts for Wasilla, Alaska, as in the following

output:

Output▼

Period 0

Conditions: rain

High: 56

Low: 40

Period 1

Conditions: partlycloudy

High: 59

Low: 40

LISTING 21.3 Continued