Quiz 4

public class Worker {
  private String job;

  public Worker(String s) {
    job = s;
  }

  public void setJob(String s) {
    job = s;
  }

  public String getJob() {
    return job;
  }
}

public class Main {
  public static void main(String[] args) {
    Stack<Worker> s = new Stack<Worker>();
    Worker gwb = new Worker("president");
    Worker bho = new Worker("senator");
    Worker you = new Worker("student");
    s.push(gwb);
    s.push(bho);
    s.push(you);
    gwb.setJob("none");
    you = bho;
    you.setJob("pres");
    bho = gwb;
    System.out.println(s.pop().getJob());
    System.out.println(s.pop().getJob());
    System.out.println(s.pop().getJob());
  }
}

void reg(JButton b, Manager m) {
	b.addActionListener(m);
}

void run() {
	JButton b = new JButton("OK");
	reg(b, new Manager());
}

void reg(JButton b, ActionListener m) {
	b.addActionListener(m);
}

void run() {
	JButton b = new JButton("OK");
	reg(b, new Manager());
}

void reg(JButton b, Manager m) {
	b.addActionListener(m);
}

void run() {
	JButton b = new JButton("OK");
	reg(b, new ActionListener());
}

void reg(JButton b, ActionListener m) {
	b.addActionListener(m);
}

void run() {
	JButton b = new JButton("OK");
	reg(b, new ActionListener());
}