我不懂
import java.util.regex.*;import java.awt.*;import java.awt.event.*;import javax.swing.*;import java.io.*;class denglu extends Frame// implements ActionListener {// String s1[]=new String[5]; private Box baseBox,boxv1,boxv2; private Panel p1,p2,p3; private TextField text1,text2; private Label l1,l2,l3; private Button submit,reset;// denglu(TextField t1,TextField t2){// this.t1 = t1;// this.t2 = t2;// } denglu(){ l1 = new Label("请登录到杨海主页!"); l2 = new Label("账号:"); l3 = new Label("密码:"); submit =new Button("提交"); reset = new Button("重置"); text1 = new TextField(16); text2 = new TextField(16); p1 = new Panel(); p2 = new Panel(); p3 = new Panel(); p1.add(l1); p3.add(submit);p3.add(reset); //p2.setLayout(new GridLayout(2,1));// p2.add(l2);p2.add(text1); // p2.add(l3);p2.add(text2);// add(p2,"Center"); boxv1 = Box.createVerticalBox(); boxv1.add(new JLabel("账号:")); boxv1.add(Box.createVerticalStrut(8)); boxv1.add(new JLabel("密码:"));// boxv1.add(Box.createVerticalStrut(8)); boxv2 = Box.createVerticalBox(); boxv2.add(text1); boxv2.add(Box.createVerticalStrut(8)); boxv2.add(text2); baseBox = Box.createHorizontalBox(); baseBox.add(boxv1);// baseBox.add(Box.createHorizontalStrut(10)); baseBox.add(boxv2); p2.setLayout(new FlowLayout()); p2.add(baseBox); add(p2,"Center");add(p1,"North");add(p3,"South");// setLayout(new FlowLayout()); // addWindowListener(this); myevent(); setSize(400,500); setVisible(true); } public void text(){ String s = null; try{ FileReader fr = new FileReader("1.txt"); int b=0; char[]buf = new char[1024]; while((b=fr.read())!=-1) s = new String(buf,0,b); // System.out.println(new String(buf,0,b)); } catch(IOException e1){} String a = " "; String sa[] = s.split(a); String s1 = text1.getText(); String s2 = text2.getText(); // String a1 ="[a-z]{6,10}"; String a2 ="\\w{6,10}"; // boolean flag1 = s1.matches(a1); boolean flag2 = s2.matches(a2);// if(!flag1)// JOptionPane.showMessageDialog(this,"您输入了非法字符","警告提示框", // JOptionPane.WARNING_MESSAGE); if(!flag2) JOptionPane.showMessageDialog(this,"密码输入错误!","警告提示框", JOptionPane.WARNING_MESSAGE); else if(!(s1.equals(sa[0])||!(s2.equals(sa[4])))) JOptionPane.showMessageDialog(this,"密码或账号输入错误!","警告提示框", JOptionPane.WARNING_MESSAGE); else new hello(); } public void myevent(){ submit.addActionListener(new ActionListener(){ public void actionPerformed(ActionEvent e){ text(); // String s1 = text1.getText(); // String s2 = text2.getText(); } }); reset.addActionListener(new ActionListener(){ public void actionPerformed(ActionEvent e){ if(e.getSource()==reset){ text1.setText(null); text2.setText(null); } } }); addWindowListener(new WindowAdapter(){ public void windowClosing(WindowEvent e){ //System.exit(0); setVisible(false); } }); }/* public static void main(String[] args) { new denglu(); System.out.println("Hello World!"); }*/}
char[]buf = new char[1024]; while((b=fr.read())!=-1) s = new String(buf,0,b);//这有问题