TimeDiff/TimeDiff.java at master · robz/TimeDiff · GitHub

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importjava.io.File;
importjava.io.FileNotFoundException;
importjava.util.ArrayList;
importjava.util.Scanner;


publicclassTimeDiff {
staticStringdayslist[] = newString[]{"Mon","Tues","Wed","Thurs","Fri","Sat","Sun"};

publicstaticvoidmain(String[] args) throwsFileNotFoundException {
parseData(args[0]);
	}

publicstaticvoidparseData(Stringfilename) throwsFileNotFoundException {
Scannersc = newScanner(newFile(filename));
ArrayList<String> data = newArrayList<String>();
while(sc.hasNext())
data.add(sc.nextLine());
sc.close();

booleandiffArr[][][] = newboolean[data.size()][7][24];
inti = 0;
for(Stringtimes:data) {
//System.out.println(times);
String[] days = times.split(", ");
//System.out.println(i);
for(Stringday_str:days) {
String[] day_info = day_str.split("[.] ");
intday = getDayIndex(day_info[0]);
//System.out.println(day_info[0]+"--"+day);
Stringrange[] = day_info[1].split(" - ");
//System.out.println(day_info[1]);
inthour1 = getHourIndexes(day_info[1])[0], hour2 = getHourIndexes(day_info[1])[1];
//System.out.println(range[0]+"-"+range[1]+" == "+hour1+"-"+hour2);
for(intj = hour1; j < hour2; j++)
diffArr[i][day][j-1] = true;
 }
//System.out.println("\n");
i++;
 }

booleanandedArr[][] = newboolean[7][24];
for(intr = 0; r < andedArr.length; r++)
for(intc = 0; c < andedArr[r].length; c++)
andedArr[r][c] = true;

for(i = 0; i < diffArr.length; i++) {
//printTimes(diffArr[i]);
//System.out.println("\n");
for(intr = 0; r < diffArr[i].length; r++)
for(intc = 0; c < diffArr[i][r].length; c++)
andedArr[r][c] &= diffArr[i][r][c];
 }

System.out.println("Intersection of hours available:\n(first column is 1 AM, last is midnight)");
printTimes(andedArr);
	}

publicstaticvoidprintTimes(boolean[][] matrix) {
System.out.print("\t");
for(inti = 0; i < matrix[0].length; i++)
System.out.print((i+1)%10);
System.out.println();
for(intr = 0; r < matrix.length; r++) {
System.out.print(dayslist[r]+":\t");
for(intc = 0; c < matrix[0].length; c++) {
intnum = (matrix[r][c]) ? 1 : 0;
System.out.print(num);
 }
System.out.println();
 }
System.out.print("\t");
for(inti = 0; i < matrix[0].length; i++)
System.out.print((i+1)%10);
System.out.println();
	}

publicstaticint[] getHourIndexes(Stringrange) {
String[] tokens = range.split(" ");
Stringhours[] = range.split(" - ");
intindex1 = getHourIndex(hours[0]),
index2 = getHourIndex(hours[1]);
if (tokens.length < 5) {
Stringsuffix = tokens[3];
if (suffix.equals("PM"))
index1+=12;
elseif (suffix.equals("AM") && index1 == 12)
index1 = 24;
 }
returnnewint[]{index1, index2};
	}

publicstaticintgetHourIndex(Stringhour) {
Stringtokens[] = hour.split(" ");
intnum = 0;
if (hour.split(":").length == 1)
num = Integer.parseInt(tokens[0]);
else
num = Integer.parseInt(hour.split(":")[0]);
if (tokens.length > 1) {
Stringsuffix = tokens[1];
if (suffix.equals("PM"))
num+=12;
elseif (suffix.equals("AM") && num == 12)
num = 24;
 }
returnnum;
	}

publicstaticintgetDayIndex(Stringday) {
for(inti = 0; i < dayslist.length; i++)
if (day.equals(dayslist[i]))
returni;
return -1;
	}
}