Cant find variables?

[craigtb]

I am working on this program in which im trying to gather information about certain things. But when i try to compile it says a variable is not found, even though it is clearly defined. Its not quite completely funciontal yet so... bare with it.

Also i am jsut learnign about inheritances so likely its a problem with the way its declared.

also i know there is a lot commented out, but i did that after realize that i think i did it wrong.

Its saying grad year cannot be found but all the other variable from the parent class work. Any Suggestions?

    class HighSchool extends Project8Driver
   {
       public HighSchool()
      {
         int gradYear;
         System.out.print("What year do you plan to graduate? ");
         gradYear = scan.nextInt();
         System.out.print("How many credits do you need to aquire before you can graduate? ");
         int credLeft = scan.nextInt();
         System.out.print("What did you score on the SAT? ");
         int SAT = scan.nextInt();
         System.out.print("How many AP credits do you have? ");
         int apCred = scan.nextInt();
      
      }
   
       public String toString()
      {
         return "Name: " +name+ "\nAge: "+age+ "\nID: "+id+"\n Graduation year: " + gradYear;
      }
   
   }

   import java.util.Scanner;
    class Project8Driver
   {
      static int age, id;
      static double gpa;
      static String schoolName, name;
      static Scanner scan = new Scanner(System.in);
       public static void main(String[]args)
      {
      // gather general info
      /*	System.out.print("Please enter your name: ");
      name = scan.next();
      System.out.print("Please enter your age: ");
      age = scan.nextInt();
      System.out.print("Please enter your school's name: ");
      schoolName = scan.next();
      System.out.print("Please enter your ID: ");
      id = scan.nextInt();
      System.out.print("Please enter your current GPA: ");
      gpa = scan.nextDouble();*/
      
         int userChoice = 1;
         while (userChoice != 0)
         {
            menu();
            userChoice = scan.nextInt();
            menuSwitch(userChoice);
         }
      
      }
   
       public static void menuSwitch(int choice)
      {
         int num;
         switch(choice)
         {
            case 4:
              /* int gradYear;
            	System.out.print("Please enter your expected graduation year: ");
            	gradYear = scan.nextInt(); */
               MiddleSchool mStudent = new MiddleSchool();
               System.out.println(mStudent);
            	
               break;
            case 1:
            	/*int gradYear, numOfCreditsRemaining, satScore, apCredits;
            	System.out.print("Please enter your expected graduation year: ");
            	gradYear = scan.nextInt();
            	System.out.print("Please enter the number of credits remaining for you to graduate: ");
            	numOfCreditsRemaining = scan.nextInt();
            	System.out.print("Please enter your SAT score: ");
            	satScore = scan.nextInt();
            	System.out.print("Please enter your number of AP credits: ");
            	apCredits = scan.nextInt(); */
               HighSchool hsStudent = new HighSchool();
               System.out.println(hsStudent);
            case 2:
            	/*boolean time;
            	int pTime, status;
            	String major, minor;
            	System.out.print("Please enter your major: ");
            	major = scan.next();
            	System.out.print("Please enter your minor: ");
            	minor = scan.next();
            	System.out.print("Are you a full time or part time student? (1 - full time, 2 - part time) ");
            	pTime = scan.nextInt();
            	if (pTime == 1)
            		time = true;
            	else
            		time = false;
            	System.out.print("Are you an Undergratuate or Graduate? (1 - Graduate, 2 - undergraduate) ");
            	status = scan.nextInt();
            	if (status == 1)
            	{
            		System.out.print("What type of degree are you aquiring? ");
            		String degreeType = scan.next();
            		System.out.print("What was your score on the GRE? ");
            		int greScore = scan.nextInt();
            	}
            	else if (status == 2)
            	{
            		System.out.print("Please enter your exam 1 grade: ");
            		int examOne = scan.nextInt();
            		System.out.print("Please enter your exam 2 grade: ");
            		int examTwo = scan.nextInt();
            		// create for loop to gather grades and put them in an array
            		for (int i = 1; i <= 14; i++)
            		{
            			System.out.print("Please enter Activity grade for Activity " + i +" : ");
            			//array[i-1] = scan.nextInt();
            		}
            		for (int j = 1; j <= 14; j++)
            		{
            			System.out.print("Please enter Exercise grade for Exercise "+j+" : ");
            			//exerciseArray[j-1] = scan.nextInt();
            		}
            		for (int k = 1; k <= 14; i++)
            		{
            			System.out.print("Please enter project grade for Project " + k +" : ");
            		//	arrayProjects[k-1] = scan.nextInt();
            		} */
               break;
         		
            default:
               System.out.println("Invalid choice");
         }
      }
   
       public static void menu()
      {
         System.out.print("Please enter your name: ");
         name = scan.next();
         System.out.print("Please enter your age: ");
         age = scan.nextInt();
         System.out.print("Please enter your school's name: ");
         schoolName = scan.next();
         System.out.print("Please enter your ID: ");
         id = scan.nextInt();
         System.out.print("Please enter your current GPA: ");
         gpa = scan.nextDouble();
         System.out.println("\tWhat type of stuent are you? ");
         System.out.println("*************");
         System.out.println("0: Middle School");
         System.out.println("1: High School");
         System.out.println("2: College");
         System.out.println("3: Quit");
         System.out.print("\nEnter your choice: ");
      }
   
   }

[Twey]

Because you've declared the variables locally to their methods. When you declare a variable like this:

class MyClass {
  void MyFunc() {
    int myVar = 5;
  }
}

myVar is only accessible within MyFunc(). If want myVar to be accessible to all methods in the class, you have to make it a property of the class:

class MyClass {
  int myVar = 5;

  void MyFunc() {
  }
}

[craigtb]

That makes sense and it is working now. Thanks Twey