第十四周课程总结和实验报告

记事本

package demo;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.awt.event.KeyEvent;
import java.awt.print.PageFormat;
import java.awt.print.PrinterJob;
import java.io.File;
import java.io.FileInputStream;
import java.io.FileNotFoundException;
import java.io.FileOutputStream;
import java.io.IOException;

import javax.swing.JFileChooser;
import javax.swing.JFrame;
import javax.swing.JMenu;
import javax.swing.JMenuBar;
import javax.swing.JMenuItem;
import javax.swing.JScrollPane;
import javax.swing.JTextArea;
import javax.swing.KeyStroke;

public class Test implements ActionListener {
         JFrame frame;
         JMenuBar bar;
         JMenu fileMenu,editMenu,formatMenu,searchMenu,helpMenu;
         JMenuItem newItem,openItem,saveItem,closeItem,pageItem,printItem;
         JMenuItem withdrawItem,shearItem,copyItem,stickItem,delateItem,seekItem,seeknextItem,replaceItem,turnItem,checkallItem,timeItem;
         JScrollPane scroll;
         JTextArea area;
         JFileChooser chooser;
         File file;
     public Test() {
    	 frame=new JFrame("记事本");
    	 bar=new JMenuBar();
    	 fileMenu=new JMenu("文件");
    	 editMenu=new JMenu("编辑");
    	 formatMenu=new JMenu("格式");
    	 searchMenu=new JMenu("查找");
    	 helpMenu=new JMenu("帮助");
    	 newItem=new JMenuItem("新建(N)");
    	 openItem=new JMenuItem("打开(O)");
    	 saveItem=new JMenuItem("另存为(A)");
    	 pageItem=new JMenuItem("页面设置(U)");
    	 printItem=new JMenuItem("打印(P)");
    	 closeItem=new JMenuItem("关闭(X)");
    	 withdrawItem=new JMenuItem("撤回(U)");
    	 shearItem=new JMenuItem("剪切(T)");
    	 copyItem=new JMenuItem("复制(C)");
    	 stickItem=new JMenuItem("粘贴(P)");
    	 delateItem=new JMenuItem("删除(L))");
    	 seekItem=new JMenuItem("查找(F)");
    	 seeknextItem=new JMenuItem("查找下一个(N)");
    	 replaceItem=new JMenuItem("替换(R)");
    	 turnItem=new JMenuItem("转到(G)");
    	 checkallItem=new JMenuItem("全选(A)");
    	 timeItem=new JMenuItem("时间(D)");
    	 
    	 area=new JTextArea();
    	 scroll=new JScrollPane(area);
    	 newItem.addActionListener(this);
    	 openItem.addActionListener(this);
    	 saveItem.addActionListener(this);
    	 closeItem.addActionListener(this);
    	 pageItem.addActionListener(this);
    	 printItem.addActionListener(this);
    	 fileMenu.add(newItem);
    	 fileMenu.addSeparator();
    	 fileMenu.add(openItem);
    	 fileMenu.addSeparator();
    	 fileMenu.add(saveItem);
    	 fileMenu.addSeparator();
    	 fileMenu.add(pageItem);
    	 fileMenu.addSeparator();
    	 fileMenu.add(printItem);
    	 fileMenu.addSeparator();
    	 fileMenu.add(closeItem);
    	 editMenu.add(withdrawItem);
    	 editMenu.addSeparator();
    	 editMenu.add(shearItem);
    	 editMenu.addSeparator();
    	 editMenu.add(copyItem);
    	 editMenu.addSeparator();
    	 editMenu.add(stickItem);
    	 editMenu.addSeparator();
    	 editMenu.add(delateItem);
    	 editMenu.addSeparator();
    	 editMenu.add(seekItem);
    	 editMenu.addSeparator();
    	 editMenu.add(seeknextItem);
    	 editMenu.addSeparator();
    	 editMenu.add(replaceItem);
    	 editMenu.addSeparator();
    	 editMenu.add(turnItem);
    	 editMenu.addSeparator();
    	 editMenu.add(checkallItem);
    	 editMenu.addSeparator();
    	 editMenu.add(timeItem);
    	 
    	 newItem.setMnemonic(KeyEvent.VK_N);
    	 newItem.setAccelerator(KeyStroke.getKeyStroke(KeyEvent.VK_N,java.awt.Event.CTRL_MASK));
    	 
    	 openItem.setMnemonic(KeyEvent.VK_O);
    	 openItem.setAccelerator(KeyStroke.getKeyStroke(KeyEvent.VK_O,java.awt.Event.CTRL_MASK));
    	 
    	 saveItem.setMnemonic(KeyEvent.VK_A);
    	 saveItem.setAccelerator(KeyStroke.getKeyStroke(KeyEvent.VK_A,java.awt.Event.CTRL_MASK));
    	 
    	 closeItem.setMnemonic(KeyEvent.VK_X);
    	 closeItem.setAccelerator(KeyStroke.getKeyStroke(KeyEvent.VK_X,java.awt.Event.CTRL_MASK));
    	 pageItem.setMnemonic(KeyEvent.VK_U);
    	 pageItem.setAccelerator(KeyStroke.getKeyStroke(KeyEvent.VK_U,java.awt.Event.CTRL_MASK));
    	 printItem.setMnemonic(KeyEvent.VK_P);
    	 printItem.setAccelerator(KeyStroke.getKeyStroke(KeyEvent.VK_P,java.awt.Event.CTRL_MASK));
    	 frame.setJMenuBar(bar);
    	 frame.add(scroll);
    	 frame.setSize(750,500);
    	 frame.setVisible(true);
    	 bar.add(fileMenu);
    	 bar.add(editMenu);
    	 bar.add(formatMenu);
    	 bar.add(searchMenu);
    	 bar.add(helpMenu);

     }
	@Override
	public void actionPerformed(ActionEvent event) {
		Object obj=event.getSource();
		if(obj instanceof JMenuItem) {
			JMenuItem item=(JMenuItem)obj;
			if(item==newItem)
			{
				new Test();
			}else if(item==openItem) {
				chooser=new JFileChooser();
				chooser.showOpenDialog(null);
				file=chooser.getSelectedFile();
				try {
					FileInputStream fis=new FileInputStream(file);
					try {
						byte[] b=new byte[fis.available()];
						fis.read(b);
						area.append(new String(b));
						fis.close();
					} catch (IOException e) {
						e.printStackTrace();
					}
				} catch (FileNotFoundException e) {
					e.printStackTrace();
				}
			}else if(item==saveItem) {           
				chooser=new JFileChooser();
				chooser.showOpenDialog(null);
				file=chooser.getSelectedFile();
					try {
						if(!file.exists()) {
						file.createNewFile();
						}
						FileOutputStream fos=new FileOutputStream(file);
						byte[] b=area.getText().getBytes();
						fos.write(b);
						fos.close();
					} catch (IOException e) {
						e.printStackTrace();
					}				
			}else if(item==pageItem)
			{
				 PageFormat pf = new PageFormat();
		            PrinterJob.getPrinterJob().pageDialog(pf);
			}
			else if(item==printItem) {
				 Print();
			}
			else if(item==closeItem) {
				System.exit(1);
			}
			}
	}
	private void Print() {
		// TODO Auto-generated method stub
		
	}
}

运行截图

本周学了关于数据库的知识
1.对于jdbc的一个了解
主要常用操作类与接口:
java.sql.DriverManager 用于管理jdbc驱动程序
Java.sql.ResultSet 用于创建表示sql语句检索结果的结果集,用户通过结果集完成对数据库的访问
2.MySQL的常用命令
1)mysql -u用户名 -p密码 连接mysql数据库
2)创建数据库:CREATE DATABASE 数据库名称;
4.配置mysql数据库的驱动程序

package textshujuku;

public class Text {
        public static final String DBDRIVER="ora.gjt.mm.mysql.Driver";
    public static void main(String[] args) {
        try {
            Class.forName(DBDRIVER);
        } catch (ClassNotFoundException e) {
            e.printStackTrace();
        }
    }
}

posted on 2019-11-30 02:54  佳佳佳333  阅读(111)  评论(0编辑  收藏  举报