Help me with this algorithm

[Marcus]

Hello. I can't access ANY methods in the program from the main.

Im trying to access the method "count" from:

Code:

 import java.io.*;
 /**
  *
  * @author pag
  */
 public class PriorityQueue implements OrderedQueue {
     
 
     /** Creates a new instance of PriorityQueue */
     public PriorityQueue() {
     }
 
     public void addInOrder(Object thisObj) {
     }
 
     public Item remove() {
         Item x;
         x = new Item();
         return x;
     }
 
     public PriorityLinkedListIterator iterator() {
         PriorityLinkedListIterator x;
         x = new PriorityLinkedListIterator();
         return x;
     }
 
     public int count() {
         int x = 0;
          return x;
     }
 
 }

main:

Code:

 import java.io.*;
 
 
 /**
  *
  * @author pag
  */
 public class Main {
     
     /** Creates a new instance of Main */
     public Main() {
     }
     
     /**
      * @param args the command line arguments
      */
     public static void main(String[] args) {
         // TODO code application logic here
         new PriorityQueue();
         System.out.println(PriorityQueue.count());
         clearscreen();
         menu();
     }
     
     static void menu(){
     //display main menu
         System.out.println("Main Menu");
         System.out.println("1. Print messages from file");
         System.out.println("2. Place messages in priority queue");
         System.out.println("3. Display next item in queue");
         System.out.println("4. Print messages in priority order");
         System.out.println("5. Display number of items in queue");
         System.out.println("6. Write remaining contents to file");   
     }
     
     static void clearscreen(){
         for (int i = 0; i < 24; i++){
                     System.out.println();
         }
         
     }
 
 }

The "System.out.println(PriorityQueue.count)" Dosen't work. The only option netbeans gives me with this class (or any class) is "PriorityQueue.Class"
Help me!

Marcus

[Eric]

That won't compile i think you are looking for System.out.println()..

Greetings

Eric

[Daniel]

I'm sure you meant PriorityQueue.count()

The problem its throwing is that i can't reference a non-static method in a static way.

Greetings.

Daniel

[olatunbode]

Hi,

You cant call a non-static method by using Classname.Methodname format. You have to first create an object of the Class first, then use that object to call the methd. For instance:

PriorityQueue x = new PriorityQueue();
x.count();

or use a faster approach...
new PriorityQueue().count();

any of these should work.

Take care!

Jide