怎么用simpleDateFormate格式化

a384311712 2013-02-04 06:33:36

package applet;

import java.applet.Applet;
import java.awt.Graphics;
import java.text.SimpleDateFormat;
import java.util.Date;
import java.util.GregorianCalendar;

public class showTime extends Applet{

private String message;

public void paint(Graphics g)
{

GregorianCalendar calendar = new GregorianCalendar();
Date date =calendar.getTime();
message = date.toString();
SimpleDateFormat s = new SimpleDateFormat("yyyy-MM-dd hh:mm");
//如何用SimpleDateFormat 格式化输出message
g.drawString(message, 20, 32);
try {
Thread.sleep(1000);
} catch (Exception e) {
System.out.println("数据异常请重试");
}
repaint();
}
}

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地雷 2013-02-16

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这种问题，先问下度娘或者谷哥吧。

菖蒲老先生 2013-02-06

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g.drawString(s.format(date), 20, 32);

dever2011 2013-02-06

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看API，里面有很详细的介绍...还可以用DateUtils这个Utils类

student-ai 2013-02-05

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引用 3 楼 ddplayer12 的回复:

Java code?12345678910111213141516171819202122232425262728package applet; import java.applet.Applet;import java.awt.Graphics;import java.text.SimpleDateFormat;import java.util.Date;import ……

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ddplayer12 2013-02-05

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package applet;

import java.applet.Applet;
import java.awt.Graphics;
import java.text.SimpleDateFormat;
import java.util.Date;
import java.util.GregorianCalendar;

public class showTime extends Applet{

private String message;

public void paint(Graphics g)
{

GregorianCalendar calendar = new GregorianCalendar();
Date date =calendar.getTime();
SimpleDateFormat s = new SimpleDateFormat("yyyy-MM-dd hh:mm");
message = s.format(date); 
g.drawString(message, 20, 32);
try {
Thread.sleep(1000);
} catch (Exception e) {
    System.out.println("数据异常请重试");
}
repaint();
}
}

这样也可以，楼上的是不用message这个变量了。

张自强 2013-02-04

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import java.applet.Applet; import java.awt.Graphics; import java.text.SimpleDateFormat; import java.util.Date; import java.util.GregorianCalendar; public class showTime extends Applet{ private String message; public void paint(Graphics g) { GregorianCalendar calendar = new GregorianCalendar(); Date date =calendar.getTime(); message = date.toString(); SimpleDateFormat s = new SimpleDateFormat("yyyy-MM-dd hh:mm"); g.drawString(s.format(date), 20, 32); try { Thread.sleep(1000); } catch (Exception e) { System.out.println("数据异常请重试"); } repaint(); } }

a384311712 2013-02-04

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package applet; 就是这个程序想在paint()中加上SimpleDateFormat 这个类使用它格式化时间怎么做 import java.applet.Applet; import java.awt.Graphics; import java.text.SimpleDateFormat; import java.util.Date; import java.util.GregorianCalendar; public class showTime extends Applet{ private String message; public void paint(Graphics g) { GregorianCalendar calendar = new GregorianCalendar(); Date date =calendar.getTime(); message = date.toString(); g.drawString(message, 20, 32); try { Thread.sleep(1000); } catch (Exception e) { System.out.println("数据异常请重试"); } repaint(); } }