public static int initializeCentroids() throws FileNotFoundException {
   int i, k, index, numClust = 0;
   Review rv;
   String reviews = new String();
   String singleRv = new String();
   String reviewer = new String();
   String rating = new String();
   for (i = 0; i < maxClusters; i++) {
     centroids[i] = new Cluster();
     centroids_ref[i] = new Cluster();
   }
   File modelFile = new File(strModelFile);
   Scanner opnScanner = new Scanner(modelFile);
   while (opnScanner.hasNext()) {
     k = opnScanner.nextInt();
     centroids_ref[k].similarity = opnScanner.nextFloat();
     centroids_ref[k].movie_id = opnScanner.nextLong();
     centroids_ref[k].total = opnScanner.nextShort(); // Leo
     centroids_ref[k].total = attrNum + 1;
     reviews = opnScanner.next();
     Scanner revScanner = new Scanner(reviews).useDelimiter(",");
     // while(revScanner.hasNext()){ //Leo
     int attrCnt = 0;
     while (revScanner.hasNext() && attrCnt < attrNum) {
       singleRv = revScanner.next();
       index = singleRv.indexOf("_");
       // reviewer = new String(singleRv.substring(0,index)); //Leo
       reviewer = new String(String.valueOf(attrCnt));
       rating = new String(singleRv.substring(index + 1));
       rv = new Review();
       rv.rater_id = Integer.parseInt(reviewer);
       rv.rating = (byte) Integer.parseInt(rating);
       centroids_ref[k].reviews.add(rv);
       attrCnt++;
     }
   }
   // implementing naive bubble sort as maxClusters is small
   // sorting is done to assign top most cluster ids in each iteration
   for (int pass = 1; pass < maxClusters; pass++) {
     for (int u = 0; u < maxClusters - pass; u++) {
       if (centroids_ref[u].movie_id < centroids_ref[u + 1].movie_id) {
         Cluster temp = new Cluster(centroids_ref[u]);
         centroids_ref[u] = centroids_ref[u + 1];
         centroids_ref[u + 1] = temp;
       }
     }
   }
   for (int l = 0; l < maxClusters; l++) {
     if (centroids_ref[l].movie_id != -1) {
       numClust++;
     }
   }
   return numClust;
 }
  public static void main(String[] args) {
    // TODO Auto-generated method stub

    Scanner input = new Scanner(System.in);
    System.out.println("Enter a number between [1000.. 9999]");
    short number = input.nextShort();
    if (number < 1000 || number > 9999) {
      System.out.println("Wrong number.Try again");
      number = input.nextShort();
    }
    int firstAndForthDigit = ((number / 1000) % 10) * 10 + number % 10;
    int secondAndThirdDigit = ((number / 100) % 10) * 10 + (number / 10) % 10;

    if (firstAndForthDigit > secondAndThirdDigit) {
      System.out.println(
          "The first number is bigger than the second ("
              + firstAndForthDigit
              + " > "
              + secondAndThirdDigit
              + ")");
    } else if (firstAndForthDigit < secondAndThirdDigit) {
      System.out.println(
          "The first number is smaller than the second("
              + firstAndForthDigit
              + " < "
              + secondAndThirdDigit
              + ")");
    } else {
      System.out.println(
          "The first and second numbers are equal ("
              + firstAndForthDigit
              + " = "
              + secondAndThirdDigit
              + ")");
    }
  }
  public static void main(String[] args) {
    String input = "1 separator 2 separator red separator blue separator 4";

    Scanner scanner = new Scanner(input);

    scanner.useDelimiter("\\s*separator\\s*"); // whitespace character [ \r\t\n\x0b\f]

    int i1 = scanner.nextInt();
    int i2 = scanner.nextInt();
    String s1 = scanner.next();
    String s2 = scanner.next();
    short h1 = scanner.nextShort();

    System.out.println(i1 + " " + i2 + " " + s1 + " " + s2 + " " + h1);

    scanner.close();
  }
  public static short leerShort() {
    short numero = 0;
    boolean error;
    do {
      try {
        numero = teclado.nextShort();
        error = false;
      } catch (InputMismatchException e) {
        System.out.println("- Debe introducir un n�mero: ");

        error = true;
      } finally {
        teclado.nextLine();
      }
    } while (error);

    return numero;
  }
Exemple #5
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 /** Read and return the next short. */
 public static short readShort() {
   return scanner.nextShort();
 }
Exemple #6
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 public static short numShort() {
   Scanner tec = new Scanner(System.in);
   short n;
   n = tec.nextShort();
   return n;
 }
  public static void main(String[] args) throws IOException {

    Scanner keyboard = new Scanner(System.in);
    String input = null; // for most of the input
    String fileName = "Tasks.txt"; // file were stuff is written to
    short menu = 0; // for the short input
    Date date = new Date(); // for the stupid date
    int modTask = 0; // for getting a task's position in the array
    int numTasks = 0; // keeps count of number of tasks added to task list
    TaskList otherStuff = new TaskList(); // TASK LIST!!

    System.out.println("Welcome to the Task Manager!");
    // A spiff little menu
    System.out.println("Would you like to: ");
    System.out.println("1. Load a task list from file");
    System.out.println("2. Save a new task list");
    System.out.println("3. Add a task");
    System.out.println("4. Remove a task");
    System.out.println("5. Edit a task");
    System.out.println("6. Search tasks");
    System.out.println("7. Sort tasks by priority");
    System.out.println("8. Print task list");
    System.out.println("9. Exit program");
    menu = keyboard.nextShort();

    switch (menu) { // Switch, switch, switch!
      case 1: // to load the file
        try {
          otherStuff.readFile(fileName);
        } catch (FileNotFoundException e) {
          System.out.println("File \"" + fileName + "\" not found!");
          System.out.println("Dying....");
          e.printStackTrace();
          System.exit(-1);
        }

        break;
      case 2: // for making a new Task list and then saving it to disk
        do {
          Task stuff = new Task(); // creating a new task

          System.out.print("Description: ");
          input = keyboard.nextLine();
          stuff.setDescription(input); // setting description

          System.out.print("Priority(1-3): ");
          input = keyboard.nextLine();
          // setting priority by converting string to short
          stuff.setPriority(Short.parseShort(input));

          System.out.println("Category(1-5): ");
          System.out.println("1. Other\n2. School\n3. Personal\n4. Chore\n5. Work");
          input = keyboard.nextLine();
          // setting priority by converting string to short
          stuff.setCategory(Short.parseShort(input));

          System.out.print("Location: ");
          input = keyboard.nextLine();
          stuff.setLocation(input); // setting location

          /*
           *  Date gets an extra separating space because it is actually a little evil
           *  and might corrupt the rest of the program.
           */
          System.out.print("Due Date (ex. 01/12/2015): ");
          input = keyboard.nextLine();
          // now things get a little weird...

          // splitting the string where character "/" appears
          // This needs a string array to hold the three strings
          String[] dateParts = input.split("/");
          // setting first part of split string (which is month in America)
          int month = Integer.parseInt(dateParts[0]);
          // setting second part of string to day (America and stuff)
          int day = Integer.parseInt(dateParts[1]);
          // setting the third part of the string to year
          int year = Integer.parseInt(dateParts[2]);

          // plugging in the newly parsed integers into Gregorian Calendar spiffiness
          GregorianCalendar gCal = new GregorianCalendar(year, month, day);
          // converting Gregorian Calendar into date!!
          date = gCal.getTime();
          // SETTING THAT DATE WITH SOME WICKED STYLE
          stuff.setDate(date);
          // finally, finally sets the date

          System.out.print("Completed? : "); // setting completed
          input = keyboard.nextLine().toLowerCase(); // doesn't matter how you enter the letter
          stuff.setCompleted(Boolean.parseBoolean(input)); // Parse that string!

          System.out.print("Add new task?");
          input = keyboard.nextLine().toLowerCase();

          otherStuff.addTask(stuff); // adds the task to the task list

          numTasks++; // keeping track of tasks in task list

        } while (input.equalsIgnoreCase("y")); // ignoring case

        otherStuff.printTasks();

        // writing task list to disk
        try {
          otherStuff.writeFile(fileName);
        } catch (FileNotFoundException e) { // no file = sadness
          System.out.println("File \"" + fileName + "\" not found!");
          System.out.println("Dying...");
          e.printStackTrace();
          System.exit(-1);
        }
        break;
      case 3: // adding a new task to the pre-existing task list
        // Same as before...
        Task stuff = new Task();

        System.out.print("Description: "); // setting description
        input = keyboard.nextLine();
        stuff.setDescription(input);

        System.out.print("Priority(1-3): "); // setting priority
        input = keyboard.nextLine();
        stuff.setPriority(Short.parseShort(input)); // parsing to short

        System.out.print("Category(1-5): "); // setting category
        input = keyboard.nextLine();
        stuff.setCategory(Short.parseShort(input)); // parse, parse

        System.out.print("Location: "); // setting location
        input = keyboard.nextLine();
        stuff.setLocation(input);

        System.out.print("Due Date (ex. 01/12/2015): "); // date..-_-
        input = keyboard.nextLine();
        String[] dateParts = input.split("/");
        int month = Integer.parseInt(dateParts[0]);
        int day = Integer.parseInt(dateParts[1]);
        int year = Integer.parseInt(dateParts[2]);
        GregorianCalendar gCal = new GregorianCalendar(year, month, day);
        date = gCal.getTime();
        stuff.setDate(date); // actually really happy with this date stuff in the end :)

        System.out.print("Completed? : "); // setting completed
        input = keyboard.nextLine().toLowerCase();
        stuff.setCompleted(Boolean.parseBoolean(input));

        otherStuff.addTask(stuff); // adding the task to the task list

        numTasks++; // adding one to number of tasks in task list cause we added a task

        break;
      case 4: // remove a task
        otherStuff.printTasks(); // print tasks so user knows what's where

        System.out.println(
            "Which task would you like to remove? "
                + "(Enter an interger starting with 0)"); // because arrays start with 0
        modTask = keyboard.nextInt();
        otherStuff.removeTask(modTask); // removing specified task

        break;
      case 5: // edit a task
        otherStuff.printTasks(); // print tasks so user knows what to edit

        System.out.println("Which task would you like to edit?");
        modTask = keyboard.nextInt();

        Task task = otherStuff.getTask(modTask); // modify specified task

        System.out.println("What would you like to edit?"); // getting all specific here
        System.out.println("1. Description");
        System.out.println("2. Priority");
        System.out.println("3. Category");
        System.out.println("4. Location");
        System.out.println("5. Due Date");
        System.out.println("6. Completed?");
        modTask = keyboard.nextInt();

        switch (modTask) { // Modify what you want!!
          case 1: // change description
            System.out.print("New Description: ");
            task.setDescription(input);
            break;
          case 2: // change priority
            System.out.print("New Priority: ");
            task.setPriority(Short.parseShort(input));
            break;
          case 3: // change category
            System.out.print("New Category: ");
            task.setCategory(Short.parseShort(input));
            break;
          case 4: // change location
            System.out.print("New Location: ");
            task.setLocation(input);
            break;
          case 5: // change due date
            System.out.print("New Due Date: ");
            task.setDate(date);
            break;
          case 6: // change completed status
            System.out.print("Completed? ");
            task.setCompleted(Boolean.parseBoolean(input));
            break;
        }
        break;
      case 6: // search tasks
        System.out.println("Would you like to search by: ");
        System.out.println("1. Category");
        System.out.println("2. Priority");
        System.out.println("3. Due date");
        System.out.println("4. Location");
        System.out.println("5. Completion");
        menu = keyboard.nextShort();

        // switch in a switch cause that's how I roll...
        switch (menu) {
          case 1: // searching by category
            otherStuff.searchByCategory(menu);
            break;
          case 2: // searching by priority
            otherStuff.searchByPriority(menu);
            break;
          case 3: // searching by due date
            otherStuff.searchByDueDate(date);
            break;
          case 4: // searching by location
            otherStuff.searchByLocation(input);
            break;
          case 5: // searching by completed status
            otherStuff.searchByCompleted(input);
            break;
        }

        break;
      case 7: // sort tasks
        // definitely the spiffiest sorting you have ever seen
        otherStuff.orderByPrio();
        // print those amazingly sorted tasks now
        otherStuff.printTasks();
        break;
      case 8: // print tasks
        otherStuff.printTasks();
        break;
      case 9: // for those crazy people not absolutely in love with this program
        System.out.println("GOODBYE!");
        keyboard.close(); // closing the keyboard
        System.exit(0); // actually exiting program
    }
  }