Java 日期选择器

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1、Java日期选择器效果如图：importjava.awt.BasicStroke;importjava.awt.BorderLayout;importjava.awt.Color;importjava.awt.Component;importjava.awt.Cursor;importjava.awt.Dimension;importjava.awt.Font;importjava.awt.Graphics;importjava.awt.Graphics2D;importjava.awt.GridLayout;importjava.awt.Point;importjava.

2、awt.Polygon;importjava.awt.Stroke;importjava.awt.Toolkit;importjava.awt.event.FocusEvent;importjava.awt.event.FocusListener;importjava.awt.event.MouseAdapter;importjava.awt.event.MouseEvent;importjava.awt.event.MouseListener;importjava.awt.event.MouseMotionListener;importjava.text.SimpleDa

3、teFormat;importjava.util.ArrayList;importjava.util.Calendar;importjava.util.Comparator;importjava.util.Date;importjava.util.List;importjavax.swing.BorderFactory;importjavax.swing.JButton;importjavax.swing.JFrame;importjavax.swing.JLabel;importjavax.swing.JPanel;importjavax.swing.Popup;impo

4、rtjavax.swing.PopupFactory;importjavax.swing.SwingUtilities;importjavax.swing.event.AncestorEvent;importjavax.swing.event.AncestorListener;publicclassDateChooserextendsJPanel{    privateDateinitDate;    privateCalendarnow=Calendar.getInstance();    privateCalendarselect;    privateJPanelmo

5、nthPanel;//月历    privateJP1jp1;//四块面板,组成    privateJP2jp2;    privateJP3jp3;    privateJP4jp4;    privateFontfont=newFont("宋体",Font.PLAIN,12);    privatefinalLabelManagerlm=newLabelManager();    privateJLabelshowDate;//,toSelect;    privateSimpleDateFormatsdf=newSimpleDateFormat("yyyy年MM月d

6、d日");    privatebooleanisShow=false;    privatePopuppop;        publicDateChooser(){        this(newDate());    }    publicDateChooser(Datedate){        initDate=date;        select=Calendar.getInstance();        select.setTime(initDate);        initPanel();        initLabel();    }    pub

7、licvoidsetEnabled(booleanb){        super.setEnabled(b);        showDate.setEnabled(b);    }        publicDategetDate(){        returnselect.getTime();    }    //根据初始化的日期,初始化面板    privatevoidinitPanel(){        monthPanel=newJPanel(newBorderLayout());        m