java投屏恢复原样（只有ED空格有用）

package a;

import java.awt.BorderLayout;
import java.awt.Color;
import java.awt.Font;
import java.awt.GraphicsDevice;
import java.awt.GraphicsEnvironment;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.awt.event.KeyEvent;
import java.awt.event.KeyListener;
import java.awt.event.MouseEvent;
import java.awt.event.MouseListener;
import java.sql.Connection;
import java.sql.DriverManager;
import java.sql.PreparedStatement;
import java.sql.ResultSet;
import java.sql.ResultSetMetaData;
import java.util.Hashtable;
import java.util.Random;
import java.util.Vector;

import javax.swing.JFrame;
import javax.swing.JLabel;
import javax.swing.JMenu;
import javax.swing.JMenuBar;
import javax.swing.JMenuItem;
import javax.swing.JOptionPane;
import javax.swing.JPopupMenu;
import javax.swing.JScrollBar;
import javax.swing.JScrollPane;
import javax.swing.JTextPane;
import javax.swing.text.Style;
import javax.swing.text.StyleConstants;
import javax.swing.text.StyledDocument;

public class Main extends JFrame implements ActionListener {

	private static GraphicsEnvironment graphicsEnvironment = GraphicsEnvironment.getLocalGraphicsEnvironment();
	private static GraphicsDevice[] graphicsDevices = graphicsEnvironment.getScreenDevices();

	private static String[] s = { "创世记", "出埃及记", "利未记", "民数记", "申命记", "约书亚记", "士师记", "路得记", "撒母耳记上", "撒母耳记下", "列王纪上",
			"列王纪下", "历代志上", "历代志下", "以斯拉记", "尼希米记", "以斯帖记", "约伯记", "诗篇", "箴言", "传道书", "雅歌", "以赛亚书", "耶利米书", "耶利米哀歌",
			"以西结书", "但以理书", "何西阿书", "约珥书", "阿摩司书", "俄巴底亚书", "约拿书", "弥迦书", "那鸿书", "哈巴谷书", "西番雅书", "哈该书", "撒迦利亚书", "玛拉基书",
			"马太福音", "马可福音", "路加福音", "约翰福音", "使徒行传", "罗马书", "哥林多前书", "哥林多后书", "加拉太书", "以弗所书", "腓立比书", "歌罗西书", "帖撒罗尼迦前书",
			"帖撒罗尼迦后书", "提摩太前书", "提摩太后书", "提多书", "腓利门书", "希伯来书", "雅各书", "彼得前书", "彼得后书", "约翰壹书", "约翰贰书", "约翰叁书", "犹大书",
			"启示录" };
	private static String[] s0 = { "律法书", "王国前历史书", "王国时历史书", "被掳后历史书", "诗歌·智慧书", "大先知书", "王国时小先知书", "被掳后小先知书", "四福音",
			"教会历史", "保罗书信", "其他使徒书信", "对约翰的启示" };
	private static String[] s1 = { "创世记", "出埃及记", "利未记", "民数记", "申命记" };
	private static String[] s2 = { "约书亚记", "士师记", "路得记" };
	private static String[] s3 = { "撒母耳记上", "撒母耳记下", "列王纪上", "列王纪下", "历代志上", "历代志下" };