OOP2/Controller.java

    Controller.java
	
			import java.util.Observable;

			abstract class Controller {
		
					private View m_view;
		
					public View view() {
		
							if(m_view == null) // If null, throw exception:
		
									throw new NullPointerException("No view was given.");
		
							else
		
									return m_view;
		
					}
		
					public void setView(View view) {
		
							m_view = view;
		
					}
		
					private Observable m_model;
		
					public Observable model() {
		
							if(m_model == null) // If null, throw exception:
		
									throw new NullPointerException("No model was given.");
		
							else
		
									return m_model;
		
					}
		
					public void setModel(Observable model) {
		
							m_model = model;
		
					}
		
			}

1	import java.util.Observable;
2
3	abstract class Controller {
4	private View m_view;
5	public View view() {
6	if(m_view == null) // If null, throw exception:
7	throw new NullPointerException("No view was given.");
8	else
9	return m_view;
10	}
11	public void setView(View view) {
12	m_view = view;
13	}
14
15	private Observable m_model;
16	public Observable model() {
17	if(m_model == null) // If null, throw exception:
18	throw new NullPointerException("No model was given.");
19	else
20	return m_model;
21	}
22	public void setModel(Observable model) {
23	m_model = model;
24	}
25	}
26