操作系统课设-页面置换算法

package UI; import java.awt.BorderLayout; import java.awt.GridLayout; import java.awt.event.ActionEvent; import java.awt.event.ActionListener; import java.awt.event.KeyAdapter; import java.awt.event.KeyEvent; import javax.swing.*; import javax.swing.border.TitledBorder; import java.util.*; //继承ActionListener实现监听 public class Algorithm extends JPanel implements ActionListener { class randomNumber { int[] rand(int n, int length) { int[] rand = new int[n]; for (int i = 0; i < n; i++) { rand[i] = (int) (Math.random() * 1000 % length) + 1;//生成n个小于length的数 } return rand; } } //北、中、南三个面板 JPanel panel_north, panel_center, panel_south; //面板中的面板，进行面板嵌套 JPanel panel_north_1, panel_north_2, panel_south_1, panel_south_2; //五个按钮 JButton button_fifo, button_lru, button_opt, button_clock,button_res; //文本区域 JTextField text_wulikuai, text_yemian, text_queyeshu, text_queyelv, text_zhihuanshu, text_zhihuanlv; //算法过程输出区域 JTextArea textarea; //随机序列显示区域 JTextArea textarea2; //手动输入序列显示区域 JTextArea textarea3; //文本区域的滚动条 JScrollPane scrollPane_1;//算法区滚动条 JScrollPane scrollPane_2;//随机序列滚动条 JScrollPane scrollPane_3;//指定序列的滚动条 //随机、手动序列单选按钮 private ButtonGroup buttonGroup = new ButtonGroup(); final JRadioButton radioButton1, radioButton2; //随机数 randomNumber RN; // 存储页面序列 String m_random = ""; //m 物理块数 n 页面总数 int m, n; //物理块 int wuli[]; //页面存储序列 int xulie[]; //构造函数，存储缺页率结果 Double res[]=new Double[4]; public Algorithm() { //初始化画板 panel_north = new JPanel(); panel_north_1 = new JPanel(); panel_north_2 = new JPanel(); //初始化画板中的画板 panel_south = new JPanel(); panel_south_1 = new JPanel(); panel_south_2 = new JPanel(); //初始化中心画板 panel_center = new JPanel(); //物理块文本 text_wulikuai = new JTextField(5); //置换页面数文本 text_yemian = new JTextField(5); //文本是否可编辑 text_queyeshu = new JTextField(); text_queyeshu.setEditable(false); //文本是否可编辑 text_queyelv = new JTextField(); text_queyelv.setEditable(false); //文本是否可编辑 text_zhihuanshu = new JTextField(); text_zhihuanshu.setEditable(false); //文本是否可编辑 text_zhihuanlv = new JTextField(); text_zhihuanlv.setEditable(false); //北部面板 //物理块面板 panel_north_1.add(new JLabel(" 请输入数据-> ")); panel_north_1.add(new JLabel(" 物理块数 ")); panel_north_1.add(text_wulikuai); //键盘事件 text_wulikuai.addKeyListener(new NumListener()); //置换页面数面板 panel_north_1.add(new JLabel(" 置换页面数 ")); panel_north_1.add(text_yemian); //添加键盘监听 只能输入数字和空格 text_yemian.addKeyListener(new NumListener()); panel_north_2.setLayout(new GridLayout(4, 1)); textarea2 = new JTextArea(1, 60); textarea3 = new JTextArea(1, 70); textarea2.setEditable(false); textarea3.setEditable(false); //输入内容自动换行 textarea2.setLineWrap(true); //输入英文时不会将一个单词分在两行里 textarea2.setWrapStyleWord(true); textarea3.setLineWrap(true); textarea3.setWrapStyleWord(true); textarea3.addKeyListener(new NumListener()); //文本区域应用滚动条 scrollPane_2 = new JScrollPane(textarea2);// scrollPane_3 = new JScrollPane(textarea3);// //radioButton1为随机页面序列 radioButton1 = new JRadioButton(); panel_north_2.add(radioButton1); buttonGroup.add(radioButton1); radioButton1.setText("随机页面序列"); radioButton1.setSelected(true);//初始化选中随机页面序列 //选择按钮触发事件 radioButton1.addActionListener(new ActionListener() { public void actionPerformed(ActionEvent e) { textarea3.setText(""); textarea3.setEditable(false); } }); panel_north_2.add(scrollPane_2); radioButton2 = new JRadioButton(); panel_north_2.add(radioButton2); buttonGroup.add(radioButton2); radioButton2.setText("指定页面序列"); //键盘监听 radioButton2.addActionListener(new ActionListener() { public void actionPerformed(ActionEvent e) { textarea2.setText(""); textarea3.setEditable(true); //把输入焦点放在调用这个方法的控件上 textarea3.requestFocus(true); } }); panel_north_2.add(scrollPane_3); //GridLayout网状布局 panel_north.setLayout(new GridLayout(2, 2)); panel_north.add(panel_north_1); panel_north.add(panel_north_2); panel_center.setBorder(new TitledBorder(null, "页面置换过程", TitledBorder.DEFAULT_JUSTIFICATION, TitledBorder.DEFAULT_POSITION, null, null)); textarea = new JTextArea(20, 60); textarea.setEditable(false); //输入内容自动换行 textarea.setLineWrap(true); //输入英文时不会将一个单词分在两行里 textarea.setWrapStyleWord(true); scrollPane_1 = new JScrollPane(textarea); panel_center.add(scrollPane_1); //南部面板 panel_south_1.setBorder(new TitledBorder(null, "数据统计结果", TitledBorder.DEFAULT_JUSTIFICATION, TitledBorder.DEFAULT_POSITION, null, null)); panel_south_1.setLayout(new GridLayout(2, 2)); panel_south_1.add(new JLabel(" 缺页数")); panel_south_1.add(text_queyeshu); panel_south_1.add(new JLabel(" 缺页率")); panel_south_1.add(text_queyelv); panel_south_1.add(new JLabel(" 置换次数")); panel_south_1.add(text_zhihuanshu); panel_south_1.add(new JLabel(" 置换率")); panel_south_1.add(text_zhihuanlv); button_fifo = new JButton("FIFO"); button_lru = new JButton("LRU"); button_opt = new JButton("OPT"); button_clock = new JButton("CLOCK"); button_res=new JButton("结果比较"); button_fifo.addActionListener(this); button_lru.addActionListener(this); button_opt.addActionListener(this); button_clock.addActionListener(this); button_res.addActionListener(this); panel_south_2.add(button_fifo); panel_south_2.add(button_lru); panel_south_2.add(button_opt); panel_south_2.add(button_clock); panel_south_2.add(button_res); //设置布局 setLayout(new BorderLayout()); panel_south.setLayout(new GridLayout(2, 2)); panel_south.add(BorderLayout.NORTH, panel_south_1); panel_south.add(BorderLayout.CENTER, panel_south_2); //将三个面板添加到布局中 add(BorderLayout.NORTH, panel_north); add(BorderLayout.CENTER, panel_center); add(BorderLayout.SOUTH, panel_south); } //计算前检查输入并初始化相关数据，对随机序列和指定页面序列进�