java用settext界面显示了JTextField的类信息，求解答？

Question

//Calendar日历记事本package wannianli;import java.util.Calendar;import javax.swing.*;import java.awt.*;import java.awt.event.*;import java.io.*;//文件访问（Java IO）粗体+ 波浪线 import java.util.Hashtable;//哈希表   粗下划线public class CalendarPad extends JFrame implements MouseListener{ int year,month,day; Hashtable hashtable; File file; JTextField showDay[]; JLabel title[]; JLabel[] label=new JLabel[49]; JLabel y_label=new JLabel(Messages.getString("CalendarPad.0")); //$NON-NLS-1$ JLabel m_label=new JLabel(Messages.getString("CalendarPad.1")); //$NON-NLS-1$ Calendar cal; Calendar now=Calendar.getInstance();// 实例化Calendar int week; NotePad notepad=null; Month ChangeMonth; Year ChangeYear; String w[]={"星期日","星期一","星期二","星期三","星期四","星期五","星期六"}; //$NON-NLS-1$ //$NON-NLS-2$ //$NON-NLS-3$ //$NON-NLS-4$ //$NON-NLS-5$ //$NON-NLS-6$ //$NON-NLS-7$ JPanel leftPanel,rightPanel; public CalendarPad(int year,int month,int day)//构造函数 { leftPanel=new JPanel(); JPanel leftCenter=new JPanel(); JPanel leftNorth=new JPanel(); leftCenter.setLayout(new GridLayout(7,7)); rightPanel=new JPanel(); this.year=year; this.month=month; this.day=day; ChangeYear=new Year(this); ChangeYear.setYear(year); ChangeMonth=new Month(this); ChangeMonth.setMonth(month); title=new JLabel[7]; showDay=new JTextField[42]; for(int j=0;j<7;j++){ title[j]=new JLabel(); title[j].setText(w[j]); title[j].setBorder(BorderFactory.createRaisedBevelBorder());//调节星期行的//createRaisedBevelBorder 在凸起的边框中，高亮在顶部，阴影在下面 leftCenter.add(title[j]); } title[0].setForeground(Color.red);//周日颜色为红 title[6].setForeground(Color.blue);//周六颜色为蓝 for(int i=0;i<42;i++){ showDay[i]=new JTextField(); showDay[i].addMouseListener(this);//设置鼠标监听 showDay[i].setEditable(false);//无法直接修改日期的东西 leftCenter.add(showDay[i]); } cal=Calendar.getInstance(); Box box=Box.createHorizontalBox(); box.add(ChangeYear);//设置上年，下年 box.add(ChangeMonth);//设置上月，下月 leftNorth.add(box); leftPanel.setLayout(new BorderLayout()); leftPanel.add(leftNorth,BorderLayout.NORTH); leftPanel.add(leftCenter,BorderLayout.CENTER); rightPanel.add(new Label(Messages.getString("年份框输入年份(负数公元前)回车确定")),BorderLayout.SOUTH); //设置年份框输入年份 leftPanel.add(new Clock(this),BorderLayout.SOUTH);//调用Clock 类实例, 来实现对当前时间的显示      leftPanel.validate(); Container con=getContentPane(); JSplitPane split=new JSplitPane(JSplitPane.HORIZONTAL_SPLIT,leftPanel,rightPanel); con.add(split,BorderLayout.CENTER); con.validate(); hashtable=new Hashtable(); file=new File(Messages.getString("日历记事本 .txt")); //日历记事本 if(!file.exists()){ try{ FileOutputStream out=new FileOutputStream(file);//文件输出流 ObjectOutputStream objectOut=new ObjectOutputStream(out);//Java 对象的基本数据类型和图形写入 OutputStream objectOut.writeObject(hashtable); objectOut.close(); out.close(); }catch(IOException e){} } notepad=new NotePad(this); rightPanel.add(notepad);//记事本 setCal(year,month);//日期 addWindowListener(new WindowAdapter(){ public void windowClosing(WindowEvent e){ System.exit(0); } }); setVisible(true); setBounds(100,50,524,285); validate(); } public void setCal(int year,int month){ cal.set(year,month-1,1); week=cal.get(Calendar.DAY_OF_WEEK)-1; System.out.println(week); if(month==1||month==2||month==3||month==5||month==7||month==8||month==10||month==12){ QueryNum(week,31); }else if(month==4||month==6||month==9||month==11){ QueryNum(week,30); }else if(month==2){ if((year%4==0&&year%100!=0)||(year%400==0)){ QueryNum(week,29); }else{ QueryNum(week,28); } } } public void QueryNum(int w_num,int month_num){ for(int i=w_num,n=1;i<w_num+month_num;i++){ showDay[i].setText(""+n); //日期 if(n==day){ showDay[i].setForeground(Color.green); showDay[i].setFont(new Font(Messages.getString("CalendarPad.12"),Font.BOLD,20)); //$NON-NLS-1$ }else{ showDay[i].setFont(new Font(Messages.getString("CalendarPad.13"),Font.BOLD,12)); //$NON-NLS-1$ showDay[i].setForeground(Color.black); } if(i%7==6){ showDay[i].setForeground(Color.blue); } if(i%7==0){ showDay[i].setForeground(Color.red); } n++; } for(int i=0;i<w_num;i++) { showDay[i].setText(""); //$NON-NLS-1$ } for(int i=w_num+month_num;i<42;i++) { showDay[i].setText(""); //$NON-NLS-1$ } } public int getYear(){return year;} public void setYear(int y){ year=y; notepad.setYear(year); } public int getMonth() {return month;} public void setMonth(int m){month=m; notepad.setMonth(month); }public int getDay(){return day;}public void setDay(int d){ day=d;notepad.setDay(day);}public Hashtable getHashtable(){ return hashtable; }public File getFile(){return file;}public void mousePressed(MouseEvent e){ JTextField source=(JTextField)e.getSource(); try{ day=Integer.parseInt(source.getText()); notepad.setDay(day); notepad.setMesLabel(year,month,day); notepad.setText(null);notepad.getLog(year,month,day);}catch(Exception ee){}}public void mouseClicked(MouseEvent e){ //rightPanel.add(notepad); }public void mouseReleased(MouseEvent e){}public void mouseEntered(MouseEvent e){}public void mouseExited(MouseEvent e){}public static void main(String args[]){ Calendar calendar=Calendar.getInstance(); int y=calendar.get(Calendar.YEAR); int m=calendar.get(Calendar.MONTH)+1; int d=calendar.get(Calendar.DAY_OF_MONTH);new CalendarPad(y,m,d);}}

Answer 1

你这个是取值错误，取出来的是他的文件，而你要展示的是字段内容。希望采纳