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getContentPane().add(b1);
b1.setLocation(100,10);
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*/
import java.io.*;
import javax.swing.*;
import java.awt.*;
import java.awt.event.*;
class KeyboardReader¡¡//×÷Ó㺴ӼüÅ̶ÁÈëÊý¾Ý
{
¡¡¡¡private BufferedReader reader;
¡¡¡¡ public KeyboardReader()
¡¡¡¡{
¡¡¡¡ ¡¡¡¡reader = new BufferedReader(new InputStreamReader(System.in));
¡¡¡¡}
¡¡¡¡ public String getKeyboardInput()
¡¡¡¡{
¡¡¡¡¡¡¡¡return readKeyboard();
¡¡¡¡}
¡¡¡¡public int getKeyboardInteger() //´Ó¼üÅ̶ÁÈëÒ»¸öintÐ͵ÄÊý¡£
¡¡¡¡{
¡¡¡¡¡¡¡¡ return Integer.parseInt(readKeyboard());
¡¡¡¡}
¡¡¡¡public double getKeyboardDouble() //´Ó¼üÅ̶ÁÈëÒ»¸ödoubleÐ͵ÄÊý
¡¡¡¡{
¡¡¡¡¡¡¡¡ return Double.parseDouble(readKeyboard());
¡¡¡¡}
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String regex = "(<a href=\")([\\S]+)(\")";
Pattern pattern = Pattern.compile(regex);
Matcher matcher = pattern.matcher(sb); //sbÊÇÒ»¸öhtml ´úÂëµÄString
while (matcher.find()) {
String str = matcher.group(2).toString();
}
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sb.delete(beg,end);
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sb.steLength(0);
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3) <a href="index.html"
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