week.java~15~

jbuilder 100例 java源码学习,非常不错,有需要朋友下来

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, 65, -1));
    this.add(label2,  new XYConstraints(33, 91, 67, -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);
  }
}