kingzhexian的专栏

public static String format(String format, Object... args)使用指定的格式字符串和参数返回一个格式化字符串。 始终使用 Locale.getDefault() 返回的语言环境。 参数： format - 格式字符串 args - 格式字符串中由格式说明符引用的参数。如果

 package notepad;import javax.swing.JDialog;import javax.swing.JLabel;import java.awt.Container;import java.awt.event.ActionEvent;import java.awt.event.ActionListener;import java.awt.event.WindowAda

 package yaopin;import java.awt.event.ActionEvent;import java.awt.event.ActionListener;import java.awt.event.MouseAdapter;import java.awt.event.MouseEvent;import java.awt.BorderLayout;import java.aw

 package yaopin;import javax.swing.JPanel;import java.awt.Component;import java.awt.Rectangle;import java.awt.event.ActionEvent;import java.awt.event.ActionListener;import javax.swing.JButton;im

 package model;public class MedicineDTO{ private String mdCode;  private String mdName; private String spellCode;  private String typeCode;  private String specContent;  private String mdUnit;   pri

 package model;import java.sql.Connection;import java.sql.PreparedStatement;import java.sql.ResultSet;import java.sql.SQLException;import java.sql.Statement;import java.util.Vector;import database

 package yaopin;import java.awt.Component;import java.awt.Rectangle;import java.awt.event.ActionEvent;import java.awt.event.ActionListener;import javax.swing.JButton;import javax.swing.JComboBox;imp

 package model;import java.sql.Connection;import java.sql.PreparedStatement;import java.sql.ResultSet;import java.sql.SQLException;import java.sql.Statement;import java.util.Vector;import database

 package model;import database.ConnectionDB;import java.sql.*;import java.text.SimpleDateFormat;import java.util.Vector;public class UserDAO{ private UserDTO userDTO; private Connection conn;     

 package model;public class UserDTO{ private String workerID; private String userName; private String password; private String departmentName; private String workKind; private String sex; private St

 package database;import java.sql.Connection;import java.sql.DriverManager;import java.sql.SQLException;public class ConnectionDB{  public static Connection getConnection() {  Connection conn = nu

 package model;public class ProviderDTO{ private String providerID; private String providerName; private String linkman; private String linkPhone; private String fax; private String email; private S

java的Runtime.getRuntime().exec(commandText)可以调用执行cmd指令。cmd /c dir 是执行完dir命令后关闭命令窗口。cmd /k dir 是执行完dir命令后不关闭命令窗口。cmd /c start dir 会打开一个新窗口后执行dir指令，原窗口会关闭。cmd /k start dir 会打开一个新窗口后执行dir指令，原窗口不会

1. ODBC Class.forName( "sun.jdbc.odbc.JdbcOdbcDriver" ); Connection cn = DriverManager.getConnection( "jdbc:odbc:DSN", sUsr, sPwd );2. Microsoft SQLServer(http://www.microsoft.com) Class.forName( "c

package notepad;import java.awt.BorderLayout;import java.awt.Component;import javax.swing.ButtonGroup;import javax.swing.JCheckBoxMenuItem;import javax.swing.JFileChooser;import javax.swing.JOptionP

 package notepad;import java.awt.Color;import java.awt.Container;import java.awt.Font;import javax.swing.JDialog;import javax.swing.JLabel;import java.awt.event.ActionEvent;import java.awt.event.Act

 package yaopin;import javax.swing.ImageIcon;import javax.swing.JOptionPane;import javax.swing.JPanel;import javax.swing.JFrame;import javax.swing.JLabel;import java.awt.Rectangle;import java.awt.ev

 package yaopin;import javax.swing.JPanel;import java.awt.Component;import java.awt.Rectangle;import java.awt.event.ActionEvent;import java.awt.event.ActionListener;import javax.swing.JComboBox;impo

 package model;import java.sql.Connection;import java.sql.PreparedStatement;import java.sql.ResultSet;import java.sql.SQLException;import java.sql.Statement;import java.util.Vector;import database

 package yaopin;import javax.swing.JPanel;import java.awt.Component;import java.awt.Rectangle;import java.awt.event.ActionEvent;import java.awt.event.ActionListener;import javax.swing.JOptionPan

 package model;public class MedicineTypeDTO {private String typeCode;private String typeName;public String getTypeCode() { return typeCode;}public void setTypeCode(String typeCode) { this.typeCode

 use mastergodrop database Medicinecreate database Medicinegouse Medicinego--第一个模块(基本信息管理)create table Provider--供应商(ProviderID varchar(10) primary key,               --供应商编号ProviderName nvarchar(50)