package untitled1;import java.awt.*;import java.awt.event.*;import java.applet.*;import com.borland.jbcl.layout.*;import java.util.Date;public class week extends Applet {  private Date today;  Font myfont;  boolean isStandalone = false;  XYLayout xYLayout1 = new XYLayout();  Label label1 = new Label();  Label label2 = new Label();  TextField text1 = new TextField();  Button button1 = new Button();  /**Get a parameter value*/  public String getParameter(String key, String def) {    return isStandalone ? System.getProperty(key, def) :      (getParameter(key) != null ? getParameter(key) : def);  }  /**Construct the applet*/  public week() {  }  /**Initialize the applet*/  public void init() {    try {      jbInit();    }    catch(Exception e) {      e.printStackTrace();    }  }  /**Component initialization*/  private void jbInit() throws Exception {    label1.setFont(new java.awt.Font("Dialog", 0, 18));    label1.setText("日期");    this.setLayout(xYLayout1);    label2.setFont(new java.awt.Font("Dialog", 0, 18));    label2.setText("年/月/日");    text1.setFont(new java.awt.Font("Dialog", 0, 18));    button1.setFont(new java.awt.Font("Dialog", 0, 18));    button1.setLabel("星期");    button1.addMouseListener(new java.awt.event.MouseAdapter() {      public void mouseClicked(MouseEvent e) {        button1_mouseClicked(e);      }    });    this.add(label1, new XYConstraints(31, 60, 80, -1));    this.add(label2, new XYConstraints(33, 91, 80, -1));    this.add(text1, new XYConstraints(102, 73, 109, -1));    this.add(button1, new XYConstraints(216, 69, 70, -1));  }  /**Get Applet information*/  public String getAppletInfo() {    return "Applet Information";  }  /**Get parameter info*/  public String[][] getParameterInfo() {    return null;  }  void button1_mouseClicked(MouseEvent e) {     String strDate = text1.getText() ;     int step1 = strDate.indexOf('/');     int step2 = strDate.lastIndexOf('/');     String year = strDate.substring(0,step1);     String month = strDate.substring(step1+1,step2);     String day = strDate.substring(step2+1);     int Year = Integer.parseInt(year);     int Month = Integer.parseInt(month);     int Day = Integer.parseInt(day);     today = new Date(Year,Month-1,Day);     repaint();  }  String getweek(){    int day = today.getDay();    switch(day){      case 0:        return "Sunday";      case 1:        return "Monday";      case 2:        return "Tuesday";      case 3:        return "Wensday";      case 4:        return "Thursday";      case 5:        return "Friday";      case 6:        return "Saturday";     }     return "";  }  public void paint(Graphics g){     myfont = new Font("TimesRoman",Font.BOLD,26);     String strday = getweek();     g.setFont(myfont);     g.drawString("today is "+strday,100,200);  }}