mainframe.java

时钟万年历代码 Clock.java放在了一个名叫 Clock的包里

/**
 * MainFrame.java
 * Summary 万年历主类
 * Created on 
 * @author 
 * remark 如有改动请发一份代码给我，邮箱[e-mail]
 */
package Clock;
import javax.swing.*;
import java.awt.*;
import java.awt.event.*;
import java.text.*;
import java.util.*;
class MainFrame extends JFrame{
    JPanel panel=new JPanel(new BorderLayout());
    JPanel panel1=new JPanel();
    JPanel panel2=new JPanel(new GridLayout(7,7));
    JPanel panel3=new JPanel();
    JLabel []label=new JLabel[49];
    JLabel y_label=new JLabel("年份");
    JLabel m_label=new JLabel("月份");
    JComboBox com1=new JComboBox();
    JComboBox com2=new JComboBox();
    JButton button=new JButton("查看");
    int re_year,re_month;
    int x_size,y_size;
    String year_num;
    Calendar now=Calendar.getInstance();    //实例化Calendar
    MainFrame(){
        super("万年历");
        setSize(300,350);
        x_size=(int)(Toolkit.getDefaultToolkit().getScreenSize().getWidth());
        y_size=(int)(Toolkit.getDefaultToolkit().getScreenSize().getHeight());
        setLocation((x_size-300)/2,(y_size-350)/2);
        setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
        panel1.add(y_label);
        panel1.add(com1);
        panel1.add(m_label);
        panel1.add(com2);
        panel1.add(button);
        for(int i=0;i<49;i++){
            label[i]=new JLabel("",JLabel.CENTER);//将显示的字符设置为居中
            panel2.add(label[i]);
        }
        panel3.add(new Clock(this));
        panel.add(panel1,BorderLayout.NORTH);
        panel.add(panel2,BorderLayout.CENTER);
        panel.add(panel3,BorderLayout.SOUTH);
        panel.setBackground(Color.white);
        panel1.setBackground(Color.white);
        panel2.setBackground(Color.white);
        panel3.setBackground(Color.white);
        Init();
        button.addActionListener(new ActionListener(){
            public void actionPerformed(ActionEvent e){
                int c_year,c_month,c_week;
                c_year=Integer.parseInt(com1.getSelectedItem().toString());        //得到当前所选年份
                c_month=Integer.parseInt(com2.getSelectedItem().toString())-1;    //得到当前月份，并减1,计算机中的月为0－11
                c_week=use(c_year,c_month);        //调用函数use，得到星期几
                Resetday(c_week,c_year,c_month);        //调用函数Resetday
            }});
        setContentPane(panel);
        setVisible(true);
        setResizable(false);
    }
    public void Init(){
    int year,month_num,first_day_num;
    String log[]={"日","一","二","三","四","五","六"};
    for(int i=0;i<7;i++){
    label[i].setText(log[i]);
    }
    for(int i=0;i<49;i=i+7){
        label[i].setForeground(Color.red);    //将星期日的日期设置为红色
    }
    for(int i=6;i<49;i=i+7){
        label[i].setForeground(Color.green);//将星期六的日期设置为绿色
    }
    for(int i=1;i<10000;i++){
        com1.addItem(""+i);
    }
    for(int i=1;i<13;i++){
        com2.addItem(""+i);
    }
    month_num=(int)(now.get(Calendar.MONTH));    //得到当前时间的月份
    year=(int)(now.get(Calendar.YEAR));            //得到当前时间的年份
    com1.setSelectedIndex(year-1);                //设置下拉列表显示为当前年
    com2.setSelectedIndex(month_num);            //设置下拉列表显示为当前月
    first_day_num=use(year,month_num);
    Resetday(first_day_num,year,month_num);
    }
    public int use(int reyear,int remonth){
        int week_num;
        now.set(reyear,remonth,1);        //设置时间为所要查询的年月的第一天
        week_num= (int)(now.get(Calendar.DAY_OF_WEEK));//得到第一天的星期
        return week_num;
    }
    public void Resetday(int week_log,int year_log,int month_log){
        int month_score_log;    //判断是否是闰年的标记
        int month_day_score;    //存储月份的天数
        int count;
        month_score_log=0;
        month_day_score=0;
        count=1;
        if(year_log%4==0&&year_log%100!=0||year_log%400==0){//判断是否为闰年
            month_score_log=1;
        }
    month_log=month_log+1;    //将传来的月份数加1
    switch(month_log){
        case 1:
        case 3:
        case 5:
        case 7:
        case 8:
        case 10:
        case 12:
        month_day_score=31;
        break;
        case 4:
        case 6:
        case 9:
        case 11:
        month_day_score=30;
        break;
        case 2:
        if(month_score_log==1){
        month_day_score=29;    
        }
        else{
        month_day_score=28;
        }
        break;
        }
        for(int i=7;i<49;i++){        //初始化标签
            label[i].setText("");
        }
        week_log=week_log+6;        //将星期数加6，使显示正确
        month_day_score=month_day_score+week_log;
        for(int i=week_log;i<month_day_score;i++,count++){
            label[i].setText(count+"");
        }
    }
    public static void main(String [] args){
        JFrame.setDefaultLookAndFeelDecorated(true);
        MainFrame start=new MainFrame();
    }    
}