除號器

package gui;

import java.awt.BorderLayout;
import java.awt.EventQueue;

import javax.swing.JFrame;
import javax.swing.JPanel;
import javax.swing.border.EmptyBorder;
import javax.swing.JLabel;
import javax.swing.JButton;
import java.awt.event.ActionListener;
import java.awt.event.ActionEvent;
import javax.swing.JTextField;
import javax.swing.JScrollPane;
import javax.swing.JTextArea;
import javax.swing.SwingConstants;

public class MainFrame extends JFrame {

	private JPanel contentPane;
	private JLabel lblNewLabel;
	private JTextField textDividend;
	private JLabel label;
	private JTextField tfDivisor;
	private JButton btnNewButton;

	/**
	 * Launch the application.
	 */
	public static void main(String[] args) {
		EventQueue.invokeLater(new Runnable() {
			public void run() {
				try {
					MainFrame frame = new MainFrame();
					frame.setVisible(true);
				} catch (Exception e) {
					e.printStackTrace();
				}
			}
		});
	}

	/**
	 * Create the frame.
	 */
	public MainFrame() {
		setTitle("GUI");
		setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
		setBounds(100, 100, 450, 300);
		contentPane = new JPanel();
		contentPane.setBorder(new EmptyBorder(5, 5, 5, 5));
		setContentPane(contentPane);
		contentPane.setLayout(null);
		
		lblNewLabel = new JLabel("\u88AB\u9664\u6578");
		lblNewLabel.setHorizontalAlignment(SwingConstants.RIGHT);
		lblNewLabel.setBounds(40, 30, 71, 23);
		contentPane.add(lblNewLabel);
		
		textDividend = new JTextField();
		textDividend.setBounds(130, 27, 136, 29);
		contentPane.add(textDividend);
		textDividend.setColumns(10);
		
		label = new JLabel("\u9664\u6578");
		label.setHorizontalAlignment(SwingConstants.RIGHT);
		label.setBounds(40, 74, 71, 23);
		contentPane.add(label);
		
		tfDivisor = new JTextField();
		tfDivisor.setColumns(10);
		tfDivisor.setBounds(130, 71, 136, 29);
		contentPane.add(tfDivisor);
		
		JScrollPane taResult = new JScrollPane();
		taResult.setBounds(40, 115, 253, 108);
		contentPane.add(taResult);
		
		JTextArea toArea = new JTextArea();
		taResult.setViewportView(toArea);
		
		btnNewButton = new JButton("\u9664\u6CD5\u904B\u7B97");
		btnNewButton.addActionListener(new ActionListener() {
			

			public void actionPerformed(ActionEvent arg0) {
				int dividend=Integer.parseInt(textDividend.getText());
				int divisor=Integer.parseInt(tfDivisor.getText());
				int quotient=dividend/divisor;
				int remainder=dividend % divisor;
				String text=String.format("%d / %d = %d....%d",dividend,divisor,quotient,remainder);
				toArea.setText(text);
				
			}
		});
		btnNewButton.setBounds(302, 74, 111, 31);
		contentPane.add(btnNewButton);
		
		
	}
}