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Java code:
package Test;
import java.awt.BorderLayout;
import java.awt.Container;
import javax.swing.JFrame;
import javax.swing.JMenu;
import javax.swing.JMenuBar;
import javax.swing.JMenuItem;
import javax.swing.JPanel;
import javax.swing.JTextField;
public class CalcTest extends JFrame{ ......
Java code:
import java.awt.Dimension;
import java.awt.Toolkit;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.io.File;
import java.io.FileInputStream;
import java.io.FileOutputStream;
import java.io.InputStream;
import java.io.OutputStream;
import j ......
1.Ϊʲô short s = s + 1;ÊÇ´íÎóµÄ£¬¶øshort s+=1ÊÇÕýÈ·µÄ¡£
2.ʵÏÖÒ»¸±ÆË¿ËÅÆÏ´ÅÆµÄ¹¦ÄÜ¡£Èç¹ûÎÞ·¨ÊéдÍêÕûµÄ´úÂ룬¿ÉÒÔÓÃÎÄ×ÖÃèÊö³ö×Ô¼ºµÄʵÏÖ˼·¡£
Õâ¸ö ºÃÏñûѧ¹ý ºÇºÇ
2¡£Ramdon¡£
short + 1 ÊÇint ÐÍ£¬java»á×Ô¶¯×ªÐ͵Ä
short +=1 £¬Ï൱ÓÚshort = (short)(short+1)
µÚÒ»µÀÌâÄ ......
Date date = new Date("2009-12-23 14:49:27");
DateFormat sdf = new SimpleDateFormat("MM-dd HH:mm");
sdf.format(data);
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´æÒ»¸öÖ¸¶¨µÄ "2009-12-23 14:49:27" ÕâÑùµÄʱ¼ä¸ñʽ»¯ ÒªÓÃʲôÀà´æ°¡¡£ ......
ÕâÊdzé³öµÄÁ½¶ÎÓï¾ä ÎÒ²»Ã÷°×Ϊʲô½¨ÁËaµÄʵÀýºó ²¢Ã»ÓиøwindowClosing(WindowEvent e)´«Èë¶ÔÏó
ҲûÓе÷ÓÃÏÔʽµÄwindowClosing£¨£© ΪʲôÄÜÖ´ÐÐÄÄ
ËûÊÇÔõô³öÈëµÄÄÇ Äܲ»ÄÜÏêϸµÄ½²Ò»ÏÂ
f.addWindowListener(new a());
class a implements WindowListener
{
public void wi ......