title: Error: Cannot find symbol when passing and returning variables
body: <p>Rookie mistake? 
  Hello, I'm a first-year computer science student and I keep getting cannot find symbol errors. I declared the variable in the main method, passed it to another method, modified it, and then returned it. For some reason, the compiler cannot find the symbols result, input, and points. I'm sure it's the same reason for all of them. Any help would be appreciated.</p>
  
  <pre><code>public class Fishing
  {
     public static void main(String[] args)
     {
        do
        {
           String input;     //Holds user input
           int points;      // Holds player's points
           int score = 0;   // Sets player's score to 0
           final int DIE_SIDES = 6;    // # of sides for the die
  
           //Create an instance of the Die class
           Die die = new Die(DIE_SIDES);
  
           //Roll the die once and store value in result
           die.roll();
           int result = die.getValue();
  
           getScore(points, result);
           String input = getInput();
  
           //Keeps running total of player's score
           score = score + points;
  
        } while (input == "yes");
        System.out.print(0);
     }
  
     /**
       The getScore method will calculate the player's score
       depending on what the player rolled. It will also show
       a message and return the score.
       @return A reference to an integer object containing
               the player's score for one roll.
     */
  
     public static int getScore(int points, int result)
     {
        if (result == 1)
        {
           JOptionPane.showMessageDialog(null, "Waaaaahhhhh, you have caught " +
                                     "a shark. Sharks are dangerous. You " +
                                          "have been awarded zero points.");
           points = 0;
           return points;
       }
       else if (result == 2)
       {
           JOptionPane.showMessageDialog(null, "You have caught a jellyfish. " +
                                "This beautiful creature has awarded you " +
                                                             "50 points!!");
           points = 50;
           return points;
       }
       else if (result == 3)
       {
           JOptionPane.showMessageDialog(null, "You have caught an old boot. " +
                              "Maybe you can sell this old boot after it " +
                               "dries out. You have been awarded 1 point.");
           points = 1;
           return points;
       }
       else if (result == 4)
       {
           JOptionPane.showMessageDialog(null, "You have caught an Alaskan salmon. " +
                              "This delicious and popular fish has awarded you " +
                                                                  "75 points!!!");
           points = 75;
           return points;
       }  
       else if (result == 5)
       {
           JOptionPane.showMessageDialog(null, "You have caught a small fish. You " +
                                                 "have been awarded 20 points!");                                                                                
           points = 20;
           return points;
       }
       else
       {
           JOptionPane.showMessageDialog(null, "You have caught a treasure chest!! " +
                                "It is filled with shining pieces of gold, and " +
                                          "you have been awarded 100 points!!!!");
           points = 100;
           return points;
       }
    }
  
     /**
        The getInput method will receive the user's input
        and return it to the main method.
        @return A reference to a String input value containing
                the user's response.
     */  
  
      public static String getInput()
      {
          //Prompt user to enter response
          response = JOptionPane.showInputDialog("Would you like to play another " +
                                     "round of fishing? Enter yes or no.");
          return response;
      }
  }
  </code></pre>