操作系统课设，用java实现磁盘调度算法，有swing界面

import javax.swing.JFrame; import javax.swing.JPanel; import javax.swing.border.EmptyBorder; import javax.swing.JTextArea; import javax.swing.JLabel; import javax.swing.JOptionPane; import javax.swing.ButtonGroup; import javax.swing.ImageIcon; import javax.swing.JButton; import javax.swing.JRadioButton; import java.awt.event.ActionListener; import java.util.ArrayList; import java.awt.event.ActionEvent; import java.awt.Color; import javax.swing.UIManager; public class Design extends JFrame { private static final long serialVersionUID = 1L; private int[] queue = new int[10]; private int startNum; private JPanel contentPane; private JLabel lblStartTrack; private JLabel lblQueue; private JLabel lblNextTrack; private JLabel lblDistance; private JLabel lblSelect; private JLabel lblAverDistance; private JTextArea taStartTrack; private JTextArea taQueue; private JTextArea taNextTrack; private JTextArea taDistance; private JTextArea taAverDistance; private JButton btnReset; private JButton btnRandom; private JButton btnQuit; private JButton btnCommit; private JRadioButton rdbtnFCFS; private JRadioButton rdbtnSSTF; private JRadioButton rdbtnSCAN_1; private JRadioButton rdbtnCSCAN_1; private JRadioButton rdbtnSCAN_2; private JRadioButton rdbtnCSCAN_2; private ButtonGroup gb; private ImageIcon icon; private JLabel lblBackground; public Design() { setTitle("磁盘调度"); setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE); setBounds(500, 50, 410, 650); contentPane = new JPanel(); contentPane.setForeground(Color.WHITE); contentPane.setBackground(UIManager.getColor("Button.background")); contentPane.setBorder(new EmptyBorder(5, 5, 5, 5)); setContentPane(contentPane); contentPane.setLayout(null); contentPane.setOpaque(false); lblStartTrack = new JLabel("\u5F00\u59CB\u78C1\u9053\u53F7:"); lblStartTrack.setBounds(33, 10, 70, 21); contentPane.add(lblStartTrack); lblQueue = new JLabel("\u8BF7\u6C42\u961F\u5217"); lblQueue.setBounds(33, 29, 66, 21); contentPane.add(lblQueue); lblNextTrack = new JLabel("\u88AB\u8BBF\u95EE\u7684\u4E0B\u4E00\u78C1\u9053\u53F7"); lblNextTrack.setBounds(143, 32, 130, 15); contentPane.add(lblNextTrack); lblDistance = new JLabel("\u79FB\u52A8\u8DDD\u79BB"); lblDistance.setBounds(304, 32, 54, 15); contentPane.add(lblDistance); lblSelect = new JLabel("\u8BF7\u9009\u62E9\u4E00\u79CD\u7B97\u6CD5\uFF1A"); lblSelect.setBounds(10, 311, 121, 21); contentPane.add(lblSelect); lblAverDistance = new JLabel("\u5E73\u5747\u5BFB\u9053\u957F\u5EA6:"); lblAverDistance.setBounds(164, 10, 86, 21); contentPane.add(lblAverDistance); taStartTrack = new JTextArea(); taStartTrack.setBounds(106, 10, 48, 20); contentPane.add(taStartTrack); taQueue = new JTextArea(); taQueue.setBounds(47, 60, 39, 184); contentPane.add(taQueue); taNextTrack = new JTextArea(); taNextTrack.setBounds(181, 57, 55, 184); contentPane.add(taNextTrack); taDistance = new JTextArea(); taDistance.setBounds(314, 57, 39, 184); contentPane.add(taDistance); taAverDistance = new JTextArea(); taAverDistance.setBounds(253, 10, 130, 21); contentPane.add(taAverDistance); btnReset = new JButton("\u91CD\u7F6E"); btnReset.addActionListener(new ActionListener() { public void actionPerformed(ActionEvent e) { taStartTrack.setText(null); taAverDistance.setText(null); taQueue.setText(null); taNextTrack.setText(null); taDistance.setText(null); btnCommit.setEnabled(false); } }); btnReset.setBounds(10, 278, 93, 23); contentPane.add(btnReset); btnRandom = new JButton("\u968F\u673A\u521D\u59CB\u5316"); btnRandom.addActionListener(new ActionListener() { public void actionPerformed(ActionEvent e) { taStartTrack.setText(null); taAverDistance.setText(null); taQueue.setText(null); taNextTrack.setText(null); taDistance.setText(null); btnCommit.setEnabled(true); for (int i = 0; i < 10; i++) { queue[i] = (int) (Math.random() * 100); for (int j = 0; j < i; j++) { while (queue[i] == queue[j]) { queue[i] = (int) (Math.random() * 100); } } } startNum = (int) (Math.random() * 100); for (int k = 0; k < 10; k++) { while (startNum == queue[k]) { startNum = (int) (Math.random() * 100); } } taStartTrack.append(String.valueOf(startNum)); for (int h = 0; h < 10; h++) { taQueue.append(String.valueOf(queue[h]) + "\n"); } } }); btnRandom.setBounds(134, 278, 121, 23); contentPane.add(btnRandom); btnQuit = new JButton("\u9000\u51FA"); btnQuit.addActionListener(new ActionListener() { public void actionPerformed(ActionEvent e) { System.exit(0); } }); btnQuit.setBounds(290, 278, 93, 23); contentPane.add(btnQuit); rdbtnFCFS = new JRadioButton("\u5148\u6765\u5148\u670D\u52A1"); rdbtnFCFS.setBounds(33, 338, 121, 23); rdbtnFCFS.setOpaque(false); contentPane.add(rdbtnFCFS); rdbtnSSTF = new JRadioButton("\u6700\u77ED\u5BFB\u9053\u65F6\u95F4\u4F18\u5148"); rdbtnSSTF.setBounds(208, 338, 150, 23); rdbtnSSTF.setOpaque(false); contentPane.add(rdbtnSSTF); rdbtnSCAN_1 = new JRadioButton("\u626B\u63CF\uFF08\u81EA\u91CC\u5411\u5916\uFF09"); rdbtnSCAN_1.setBounds(33, 365, 132, 23); rdbtnSCAN_1.setOpaque(false); contentPane.add(rdbtnSCAN_1); rdbtnCSCAN_1 = new JRadioButton("\u5FAA\u73AF\u626B\u63CF\uFF08\u81EA\u91CC\u5411\u5916\uFF09"); rdbtnCSCAN_1.setBounds(208, 365, 159, 23); rdbtnCSCAN_1.setOpaque(false); contentPane.add(rdbtnCSCAN_1); rdbtnSCAN_2 = new JRadioButton("\u626B\u63CF\uFF08\u81EA\u5916\u5411\u91CC\uFF09"); rdbtnSCAN_2.setBounds(33, 393, 132, 23); rdbtnSCAN_2.setOpaque(false); contentPane.add(rdbtnSCAN_2); rdbtnCSCAN_2 = new JRadioButton("\u5FAA\u73AF\u626B\u63CF\uFF08\u81EA\u5916\u5411\u91CC\uFF09"); rdbtnCSCAN_2.setBounds(210, 393, 173, 23); rdbtnCSCAN_2.setOpaque(false); contentPane.add(rdbtnCSCAN_2); gb = new ButtonGroup(); gb.add(rdbtnFCFS); gb.add(rdbtnSSTF); gb.add(rdbtnSCAN_1); gb.add(rdbtnCSCAN_1); gb.add(rdbtnSCAN_2); gb.add(rdbtnCSCAN_2); btnCommit = new JButton("\u786E\u5B9A"); btnCommit.setEnabled(false); btnCommit.addActionListener(new ActionListener() { public void actionPerformed(ActionEvent e) { if (!rdbtnFCFS.isSelected() && !rdbtnSSTF.isSelected() && !rdbtnSCAN_1.isSelected() && !rdbtnCSCAN_1.isSelected() && !rdbtnSCAN_2.isSelected() && !rdbtnCSCAN_2.isSelected()) { JOptionPane.showMessageDialog(btnRandom, "请选择一种算法！","提示",JOptionPane.ERROR_MESSAGE); } else { taNextTrack.setText(null); taDistance.setText(null); taAverDistance.setText(null); while (Algorithm.finishedList.isEmpty() == false) { Algorithm.finishedList.remove(0); } ArrayList<Track> list = new ArrayList<Track>(); for (int i = 0; i < 10; i++) { list.add(new Track(queue[i])); } if (rdbtnFCFS.isSelected()) { Algorithm.fcfs(list, startNum); } else if (rdbtnSSTF.isSelected()) { Algorithm.sstf(list, startNum); } else if (rdbtnSCAN_1.isSelected()) { Algorithm.scan_1(list, startNum); } else if (rdbtnCSCAN_1.isSelected()) { Algorithm.cscan_1(list, startNum); } else if (rdbtnSCAN_2.isSelected()) { Algorithm.scan_2(list, startNum); } else if (rdbtnCSCAN_2.isSelected()) { Algorithm.cscan_2(list, startNum); } for (int j = 0; j < 10; j++) { taNextTrack.append(Algorithm.finishedList.get(j).num + "\n"); taDistance.append(Algorithm.finishedList.get(j).distance + "\n"); } taAverDistance.append(Algorithm.averDistance + ""); } } }); btnCommit.setBounds(143, 433, 93, 23); contentPan