Method passing

Question

Hi I am new to passing methods and I am having some problems compiling a program. Any ideas on how to to solve the 20 errors I have?
import javax.swing.JOptionPane;
class MethodsHomework
     public static void main (String[]args)
          // define the correct combination
          int firstNo=3;
          int secondNo=7;
          int thirdNo =4;
          int num1=getInt(numb);
          int num2=getInt(numb);
          int num3=getInt(numb);
          int attempt=0; // counts number of attempts
          boolean success = false; // flag to indicate lock opened
          while ((attempt<3) && !success)
               boolean  correct = true; //  flag set false when guess wrong
          System.exit(0);
     public static int getInt(int numb)
          // first number
          String first = JOptionPane.showInputDialog(null,"Enter First Number",
          "Combination Lock",JOptionPane.QUESTION_MESSAGE);
          numb = Integer.parseInt(first);
          // second number
          String second = JOptionPane.showInputDialog(null,"Enter Second Number",
         "Combination Lock",JOptionPane.QUESTION_MESSAGE);
          numb = Integer.parseInt(second);
          // third number     
          String third = JOptionPane.showInputDialog(null,"Enter Third Number",
          "Combination Lock",JOptionPane.QUESTION_MESSAGE);
          numb = Integer.parseInt(third);
     public static boolean checkNumber(int num1,int num2,int num3)
          if (num1 != firstNo)
               correct = false;
          if (num2 != secondNo)
               correct = false;
          if (num3 != thirdNo)
               correct = false;
          return correct;          
     public static boolean outputResultOfGuess(String[]args)
          // result
          if (correct)
               return correct;
          return correct;
     public static void outputMessage(String result)
          if (correct)
               JOptionPane.showMessageDialog(null,"Lock Open",
                       "Combination Lock", JOptionPane.INFORMATION_MESSAGE);
               success=true;
          else
               JOptionPane.showMessageDialog(null,"Lock Not Open",
             "Combination Lock", JOptionPane.INFORMATION_MESSAGE);
             success=false;
          attempt++;
          // tidying up
          if ((attempt == 3) && (!success))
               JOptionPane.showMessageDialog(null,"You have had 3 attempts","Combination Lock",
               JOptionPane.INFORMATION_MESSAGE);
}

Answer 1

Thanks for your replies. I have now got rid of 11 errors. I now have 7 errors after changing my code. Here is the updated code:
import javax.swing.JOptionPane;
class MethodsHomework
     public static void main (String[]args)
          boolean correct=true;
          int num1=getInt();
          int num2=getInt();
          int num3=getInt();
     public static int getInt()
          // first number
          String numString = JOptionPane.showInputDialog(null,"Enter First Number",
          "Combination Lock",JOptionPane.QUESTION_MESSAGE);
          int numb = Integer.parseInt(numString);
     public static boolean checkNumber(int num1,int num2,int num3)
          // define the correct combination
          int firstNo=3;
          int secondNo=7;
          int thirdNo =4;
          if (num1 != firstNo)
               correct = false;
          if (num2 != secondNo)
               correct = false;
          if (num3 != thirdNo)
               correct = false;
          return correct;          
     public static boolean outputResultOfGuess(boolean correct)
          // result
          if (correct)
               return correct;
          return correct;
     public static void outputMessage(boolean correct)
          int attempt=0; // counts number of attempts
          if (correct)
               JOptionPane.showMessageDialog(null,"Lock Open",
                       "Combination Lock", JOptionPane.INFORMATION_MESSAGE);
               success=true;
          else
               JOptionPane.showMessageDialog(null,"Lock Not Open",
             "Combination Lock", JOptionPane.INFORMATION_MESSAGE);
             success=false;
          attempt++;
          // tidying up
          if ((attempt == 3) && (!success))
               JOptionPane.showMessageDialog(null,"You have had 3 attempts","Combination Lock",
               JOptionPane.INFORMATION_MESSAGE);
}Here is the error list:
--------------------Configuration: JDK version 1.4.2 <Default>--------------------
U:\Java\Week8\MethodsHomework\MethodsHomework.java:32: cannot resolve symbol
symbol  : variable correct
location: class MethodsHomework
               correct = false;
                        ^
U:\Java\Week8\MethodsHomework\MethodsHomework.java:35: cannot resolve symbol
symbol  : variable correct
location: class MethodsHomework
               correct = false;
                        ^
U:\Java\Week8\MethodsHomework\MethodsHomework.java:39: cannot resolve symbol
symbol  : variable correct
location: class MethodsHomework
               correct = false;
                        ^
U:\Java\Week8\MethodsHomework\MethodsHomework.java:40: cannot resolve symbol
symbol  : variable correct
location: class MethodsHomework
          return correct;          
                       ^
U:\Java\Week8\MethodsHomework\MethodsHomework.java:63: cannot resolve symbol
symbol  : variable success
location: class MethodsHomework
               success=true;
                        ^
U:\Java\Week8\MethodsHomework\MethodsHomework.java:69: cannot resolve symbol
symbol  : variable success
location: class MethodsHomework
             success=false;
                ^
U:\Java\Week8\MethodsHomework\MethodsHomework.java:75: cannot resolve symbol
symbol  : variable success
location: class MethodsHomework
          if ((attempt == 3) && (!success))
                                        ^
7 errors
Process completed.Thanks for your assistance,