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import java.io.*; public class Activity3D { public static void main(String[] args) { BufferedReader input; String line; String[] tokens; int temperature; String numeric, direction = ""; int speed; int precipitation = 0; String unit = ""; int separation; Reading[] readings = new Reading[100]; int size = 0; try { input = new BufferedReader(new FileReader("readings.txt")); line = input.readLine(); while (line != null) { tokens = line.split(","); temperature = Integer.parseInt(tokens[0].trim()); tokens[1] = tokens[1].trim(); separation = firstNonNumericPosition(tokens[1]); if (separation == 0 || (separation < 0 && Integer.parseInt(tokens[1]) != 0)) { speed = -1; } else { if (separation < 0) { speed = 0; direction = ""; } else { numeric = tokens[1].substring(0, separation); speed = Integer.parseInt(numeric.trim()); direction = tokens[1].substring(separation).trim(); } if (tokens.length > 2) { tokens[2] = tokens[2].trim(); separation = firstNonNumericPosition(tokens[2]); if (separation <= 0) { precipitation = -1; } else { numeric = tokens[2].substring(0, separation); precipitation = Integer.parseInt(numeric.trim()); unit = tokens[2].substring(separation).trim(); } } else { precipitation = 0; unit = ""; } } if (speed < 0 || precipitation < 0) { System.out.println("Error in input: " + line); } else { readings[size] = new Reading(temperature, speed, direction, precipitation, unit.equalsIgnoreCase("cm")); size++; } line = input.readLine(); } input.close(); } catch (IOException ioe) { System.out.println(ioe.getMessage()); } for (int i = 0; i < size; i++) { System.out.println(readings[i]); } System.out.println("\nEnd of processing."); } public static int firstNonNumericPosition(String str) { int pos = -1; int i = 0; while (pos < 0 && i < str.length()) { if (str.charAt(i) < '0' || str.charAt(i) > '9') { pos = i; } else { i++; } } return pos; } } class Reading { private int temperature; // in degrees C private int windSpeed; // in km/h private String windDirection; // e.g. N,SW,ESE private int precipitation; // in mm private boolean isSnow; // true if precipitation fell as snow public Reading(int temperature, int windSpeed, String windDirection, int precipitation, boolean isSnow) { this.temperature = temperature; this.windSpeed = windSpeed; this.windDirection = windDirection; this.precipitation = precipitation; this.isSnow = isSnow; } /* public Reading(int temperature, int windSpeed, String windDirection) { this.temperature = temperature; this.windSpeed = windSpeed; this.windDirection = windDirection; this.precipitation = 0; this.isSnow = false; } public Reading(int temperature, int precipitation, boolean isSnow) { this.temperature = temperature; this.windSpeed = 0; this.windDirection = ""; this.precipitation = precipitation; this.isSnow = isSnow; } */ public int getTemperature() { return temperature; } public int getPrecipitation() { return precipitation; } public String getWindDirection() { return windDirection; } public String toString() { String result; result = "temp: " + temperature + "C wind: " + windSpeed + windDirection + " precipitation: " + precipitation; if (isSnow) { result += "cm snow"; } else { result += "mm rain"; } return result; } }