New to Java

I'm working with an array list class called PersonList and it uses attributes from a normal class called Person.
I would like to make this method PrintPerson inside the PersonList class that should search for a specific Person given the ID as parameter to the method. the method should print all info of the Person if found, otherwise a message saying id is not valid.

I solved it like this:

public void PrintPerson(int id)
	{
		System.out.println("Enter ID of the person ");
		id = Stdin.readInteger();
		//search the ID if it is in the List
		int i=0;
		while 
		((i<next)&&(!(list.getID().equals(id))))

		i++;

		//if found

		if (i<next)

		{

			list[i].OutputWindow();}//display the object ouput of this ID

			else{

			

			System.out.println("The following ID: " id "is not valid!");

		}//end if

		

	}// end of method
 

my problem is with this code:

((i<next)&&(!(list.getID().equals(id))))



I get this error "int cannot be dereferenced" 

what should I do? help me please



-- Matt