Something

private void displayQueue(String queueName) {

		// Column titles
		Object[] colNames = new Object[2];
		colNames[0] = "Process";
		colNames[1] = "Time Remaining";

		if (queueName.equalsIgnoreCase("printer"))
			dPanel = new JTable(sim.printer.view(), colNames);

		else if (queueName.equalsIgnoreCase("disk"))
			dPanel = new JTable(sim.disk.view(), colNames);

		else
			dPanel = new JTable(sim.readyQ.view(), colNames);

		this.getContentPane().remove(scroller);
		scroller = new JScrollPane(dPanel);
		this.getContentPane().add(scroller, "Center");
		this.pack();
	}