程序源代码相似性检验Demo（GUI：Java-Swing）

package HashMap; import java.lang.Math; import java.awt.EventQueue; import java.awt.event.ActionEvent; import java.awt.event.ActionListener; import javax.swing.JFrame; import javax.swing.JPanel; import javax.swing.border.EmptyBorder; import javax.swing.JTextField; import javax.swing.JButton; import javax.swing.JTextArea; import javax.swing.JScrollPane; import java.awt.Font; import java.awt.Color; import javax.swing.ScrollPaneConstants; public class Window extends JFrame { /** * */ private static final long serialVersionUID = 1L; private JPanel contentPane; private JTextField textField; // 关键字输入框 private JTextField textField_1; // 源码1输入框 private JTextField textField_2; // 源码2输入框 private JTextField textField_3; // 结果输出框 private JTextField textField_u; public String[] Change(String s) { // 消除字符串中所有的标点符号和多余的空格 int point = 0; String[] r = new String[s.length()]; String buf = new String(); StringBuffer buffer = new StringBuffer(); r = s.split("\\s+"); for (int i = 0; i < r.length; i++) { buffer.append(r[i]); buffer.append(" "); } buf = buffer.toString(); char[] c = buf.toCharArray(); for (int i = 0; i < c.length; i++) { // 把所有标点符号变为空格 if (c[i] == '`' || c[i] == '~' || c[i] == '!' || c[i] == '@' || c[i] == '#' || c[i] == '$' || c[i] == '%' || c[i] == '^' || c[i] == '&' || c[i] == '*' || c[i] == '(' || c[i] == ')' || c[i] == '-' || c[i] == '=' || c[i] == '+' || c[i] == '[' || c[i] == ']' || c[i] == '{' || c[i] == '}' || c[i] == '\\' || c[i] == '|' || c[i] == ';' || c[i] == ':' || c[i] == '\'' || c[i] == '"' || c[i] == ',' || c[i] == '<' || c[i] == '.' || c[i] == '>' || c[i] == '/' || c[i] == '?') { c[i] = ' '; } } for (int i = 0; i < c.length; i++) { if (c[i] == ' ') { continue; } else { point = i; break; } } char[] c1 = new char[c.length - point]; // 把第一个非空格字符前的所有空格去掉 for (int i = 0; i < c1.length; i++) { c1[i] = c[i + point]; } buffer = new StringBuffer(); for (int i = 0; i < c1.length; i++) { buffer.append(c1[i]); } buf = buffer.toString(); r = buf.split("\\s+"); // 去掉多余的空格，确保每个字符间只有一个空格 return r; } /** * Launch the application. */ public static void main(String[] args) { EventQueue.invokeLater(new Runnable() { public void run() { try { Window frame = new Window(); // 创建主窗口 frame.setLocationRelativeTo(null); // 让主窗口在屏幕中间 frame.setVisible(true); } catch (Exception e) { e.printStackTrace(); // 在命令行打印异常信息在程序中出错的位置及原因 } } }); } /** * Create the frame. */ public Window() { setTitle("源码相似性检验"); setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE); setBounds(100, 100, 1315, 692); contentPane = new JPanel(); contentPane.setBorder(new EmptyBorder(5, 5, 5, 5)); setContentPane(contentPane); contentPane.setLayout(null); JButton btnNewButton = new JButton("确定"); btnNewButton.setBackground(Color.YELLOW); btnNewButton.setFont(new Font("宋体", Font.PLAIN, 20)); btnNewButton.setBounds(603, 489, 97, 23); contentPane.add(btnNewButton); JTextArea textArea = new JTextArea(); // 关键字输入窗口 JScrollPane pane = new JScrollPane(textArea, JScrollPane.VERTICAL_SCROLLBAR_ALWAYS, JScrollPane.HORIZONTAL_SCROLLBAR_ALWAYS); pane.setBounds(10, 40, 618, 115); contentPane.add(pane); JTextArea textArea_u = new JTextArea(); // 用户表示符输入窗口 JScrollPane pane_u = new JScrollPane(textArea_u, JScrollPane.VERTICAL_SCROLLBAR_ALWAYS, JScrollPane.HORIZONTAL_SCROLLBAR_ALWAYS); pane_u.setBounds(673, 40, 618, 115); contentPane.add(pane_u); JTextArea textArea_1 = new JTextArea(); // 源码1输入窗口 JScrollPane pane1 = new JScrollPane(textArea_1, JScrollPane.VERTICAL_SCROLLBAR_ALWAYS, ScrollPaneConstants.HORIZONTAL_SCROLLBAR_ALWAYS); pane1.setBounds(10, 189, 618, 290); contentPane.add(pane1); JTextArea textArea_2 = new JTextArea(); // 源码2输入窗口 JScrollPane pane2 = new JScrollPane(textArea_2, JScrollPane.VERTICAL_SCROLLBAR_ALWAYS, JScrollPane.HORIZONTAL_SCROLLBAR_ALWAYS); pane2.setBounds(673, 189, 618, 290); contentPane.add(pane2); JTextArea textArea_3 = new JTextArea(); // 结果输出窗口 textArea_3.setEditable(false); JScrollPane pane3 = new JScrollPane(textArea_3, JScrollPane.VERTICAL_SCROLLBAR_ALWAYS, JScrollPane.HORIZONTAL_SCROLLBAR_ALWAYS); pane3.setBounds(10, 522, 1281, 104); contentPane.add(pane3); textField = new JTextField(); textField.setBackground(Color.PINK); textField.setEditable(false); textField.setFont(new Font("宋体", Font.PLAIN, 22)); textField.setText("关键字输入"); textField.setBounds(10, 2, 123, 28); contentPane.add(textField); textField.setColumns(10); textField_u = new JTextField(); textField_u.setFont(new Font("宋体", Font.PLAIN, 22)); textField_u.setText("用户标识符输入"); textField_u.setEditable(false); textField_u.setBackground(Color.PINK); textField_u.setBounds(1127, 2, 164, 28); contentPane.add(textField_u); textField_u.setColumns(10); textField_1 = new JTextField(); textField_1.setBackground(Color.ORANGE); textField_1.setFont(new Font("宋体", Font.PLAIN, 22)); textField_1.setText("源码1输入"); textField_1.setEditable(false); textField_1.setBounds(10, 158, 123, 28); contentPane.add(textField_1); textField_1.setColumns(10); textField_2 = new JTextField(); textField_2.setEditable(false); textField_2.setFont(new Font("宋体", Font.PLAIN, 22)); textField_2.setBackground(Color.ORANGE); textField_2.setText("源码2输入"); textField_2.setBounds(1175, 158, 116, 30); contentPane.add(textField_2); textField_2.setColumns(10); textField_3 = new JTextField(); textField_3.setEditable(false); textField_3.setBackground(Color.YELLOW); textField_3.setFont(new Font("宋体", Font.PLAIN, 22)); textField_3.setText("源码关键字频度及相似性"); textField_3.setBounds(10, 489, 256, 31); contentPane.add(textField_3); textField_3.setColumns(10); btnNewButton.addActionListener(new ActionListener() { @Override public void actionPerformed(ActionEvent e) { try { // TODO Auto-generated method stub double distance = 0, distance_u = 0; // 源码1和源码2的“相对距离” 关键字和用户标识符的 double[] data1, data2, data1_u, data2_u; // 存源码1和源码2基于关键字的value值和基于用户标识符的value值 String in = new String(), in_u = new String(), buf = new String(), input1 = new String(), input2 = new String();// 关键字输入in、用户标识符输入in_u、临时用的缓存、源码1输入input1,源码2输入input2 String[] library = null, library_u = null, library1 = null, library2 = null; // 存关键字，用户标识符，源码1，源码2的string数组 StringBuffer buffer = new StringBuffer(); // string的中介 HashList list = new HashList(), list_u = new HashList(), list1 = new HashList(), list2 = new HashList(), list1_u = new HashList(), list2_u = new HashList(); // 关键字、用户标识符、源码1和源码2分别关于关键字和用户标识符的hash表 int num = 0, num_u = 0; // 关键字和用户标识符的个数 try { in = textArea.getText(); // 关键字的输入 library = Change(in); for (int i = 0; i < library.length; i++) { // 创建关键字的hash表 buffer = new StringBuffer(); buffer.append(library[i]); buf = buffer.toString(); if (