Java开发网 - 如何将某个日期转化成对应的星期几？？

Topic: 如何将某个日期转化成对应的星期几？？

1.如何将某个日期转化成对应的星期几？？	Copy to clipboard
Posted by: fighttodeath Posted on: 2006-07-06 22:06 请各位高手帮忙说说算法。。谢谢。。。

2.Re:如何将某个日期转化成对应的星期几？？ [Re: fighttodeath]	Copy to clipboard
Posted by: why Posted on: 2006-07-06 22:33 int yourDayOfWeek = yourDate.get(Calendar.DAY_OF_WEEK); Sun = 1 Mon = 2 ... http://java.sun.com/j2se/1.4.2/docs/api/java/util/Calendar.html#get(int) http://java.sun.com/j2se/1.4.2/docs/api/java/util/Calendar.html#DAY_OF_WEEK http://java.sun.com/j2se/1.4.2/docs/api/constant-values.html#java.util.Calendar.SUNDAY

3.Re:如何将某个日期转化成对应的星期几？？ [Re: fighttodeath]	Copy to clipboard
Posted by: zcjl Posted on: 2006-07-06 22:33 请查看java.util.Calendar的JavaDoc

4.Re:如何将某个日期转化成对应的星期几？？ [Re: fighttodeath]

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Posted by: myohmy
Posted on: 2006-07-06 22:43

我以前写的哈

import java.awt.*;
import java.awt.event.*;
import java.util.*;
import java.lang.String;
import javax.swing.JButton;
import javax.swing.JLabel;
import javax.swing.JTextField;
import javax.swing.JFrame;

public class calendar extends JFrame
{

private JButton okJButton;
private JLabel weekJLabel,yearJLabel,monJLabel,dayJLabel;
private JTextField weekJTextField,yearJTextField,monJTextField,dayJTextField;

public calendar(){
createUserInterface();
}

// create and position GUI components
private void createUserInterface()
{ Container contentPane = getContentPane();
contentPane.setLayout( null );
// set up scanJButton

yearJLabel= new JLabel();
yearJLabel.setBounds( 10, 20, 80, 20 );
yearJLabel.setText( "年");
contentPane.add(yearJLabel);

monJLabel= new JLabel();
monJLabel.setBounds( 100, 20, 80, 20 );
monJLabel.setText( "月");
contentPane.add( monJLabel);

dayJLabel= new JLabel();
dayJLabel.setBounds( 200, 20,80, 20 );
dayJLabel.setText( "日");
contentPane.add( dayJLabel);

yearJTextField= new JTextField();
yearJTextField.setBounds( 10, 80, 80, 20 );
yearJTextField.setText( "");
contentPane.add(yearJTextField);

monJTextField= new JTextField();
monJTextField.setBounds( 100, 80, 80, 20 );
monJTextField.setText( "");
contentPane.add(monJTextField);

dayJTextField= new JTextField();
dayJTextField.setBounds( 200, 80, 80, 20 );
dayJTextField.setText( "");
contentPane.add(dayJTextField);

okJButton = new JButton();
okJButton.setBounds( 10, 150, 65, 42 );
okJButton.setText( "ok" );
okJButton.setBackground( Color.ORANGE );
contentPane.add( okJButton);
okJButton.addActionListener(new ActionListener(){

public void actionPerformed(ActionEvent event){

okJButtonActionPerformed(event);

}
}
);

weekJLabel= new JLabel();
weekJLabel.setBounds( 100, 220, 80, 20 );
weekJLabel.setText( "星期");
contentPane.add(weekJLabel);

weekJTextField= new JTextField();
weekJTextField.setBounds( 170, 220, 80, 20 );
weekJTextField.setText( "");
contentPane.add(weekJTextField);

setTitle( "canlender" ); // set title bar text
setSize( 305, 320 ); // set window size
setVisible( true ); // display window

} // end method createUserInterface

private void okJButtonActionPerformed( ActionEvent event )
{

int year=Integer.parseInt(yearJTextField.getText());

int mon=Integer.parseInt(monJTextField.getText());

int day=Integer.parseInt(dayJTextField.getText());

Calendar cal = new GregorianCalendar(year,mon-1,day);

int dayOfWeek = cal.get(Calendar.DAY_OF_WEEK);

if ((dayOfWeek-1)==0)

weekJTextField.setText("日");
else
weekJTextField.setText(String.valueOf(dayOfWeek-1));

}

public static void main( String[] args ) {
calendar application = new calendar();
application.setDefaultCloseOperation( JFrame.EXIT_ON_CLOSE );

} // end method main

}

5.Re:如何将某个日期转化成对应的星期几？？ [Re: fighttodeath]	Copy to clipboard
Posted by: fighttodeath Posted on: 2006-07-07 09:25 非常感谢各位。。谢谢。。

6.Re:如何将某个日期转化成对应的星期几？？ [Re: fighttodeath]	Copy to clipboard
Posted by: fanchen1111 Posted on: 2006-09-21 08:52 上面那个程序有一点小问题,对于月份和日期没有限制大小,月份中输入1000也能计算出结果,需要改进一下