Can someone tell me why this code won't work. I am using the IntelliJ Java language.

Here is the code:

package com.learn; import org.w3c.dom.ls.LSOutput; import java.util.Queue; import java.util.LinkedList; import java.util.Stack; import java.util.ArrayList; public class Main { public static void main(String[] args) { } public static class QWP { public void main(String args[]){ QWP qp=new QWP(); qp.start(); } public void start(){ int orderup=234; Queue customers =new LinkedList (); customers.add(new Customer("Jim",234)); //printQueue(customers); Customer x=new Customer("Bob",999); customers.add(new Customer("Kaitlyn",123)); customers.add(new Customer("Jesse",432)); customers.add(new Customer("Andrea",476)); customers.add(x); printQueue(customers); Customer temp=customers.peek(); if(temp.ordernumber==orderup){ customers.remove(); } printQueue(customers); orderup=123; temp=customers.peek(); if(temp.ordernumber==orderup){ customers.remove(); } printQueue(customers); } public void printQueue(Queue q){ for(Customer i:q){ System.out.println(i.name+":"+i.ordernumber); } System.out.println("------");} } } class Customer { String name; int ordernumber; public Customer(String n, int o){ name=n; ordernumber=o; } 

}