Ò׽ؽØÍ¼Èí¼þ¡¢µ¥Îļþ¡¢Ãâ°²×°¡¢´¿ÂÌÉ«¡¢½ö160KB

ѯÎÊÒ»¸öJAVAµÄСÎÊÌâ

ǰÌìÒ»¸çÃÇÎÊÎÒÒ»¸öСÎÊÌâÈçÏÂ
Java³ÌÐòÈçÏ£º
class yiwei
{
   public static void main(String [] args)
   {
      int i = -4;
      int c = i>>>1;
      System.out.println(c);
      System.out.println(Integer.toBinaryString(c));
   }
}
ËüµÄ×îÖÕÊä³ö½á¹ûÊÇ214748463646ºÍ1111111111111111111111111111110£»ÎªÊ²Ã´£¬Óе㲻¶®£¡Çë¸ßÊÖÖ¸µã£¡Ð»Ð»!
ÎÒÏëÁ˰ëÌìÒ²½âÊͲ»Çå³þ,»¹ÇëÄÄλ¸ßÈËСָµãÏÂ!¶àл!!!


Ïà¹ØÎĵµ£º

¾ÞÈËÍøÂçjava±ÊÊÔ»ù´¡Ìâ·ÖÏí

1¡¢StringÊÇ×î»ù±¾µÄÊý¾ÝÀàÐÍÂð?
»ù±¾Êý¾ÝÀàÐͰüÀ¨byte¡¢int¡¢char¡¢long¡¢float¡¢double¡¢booleanºÍshort¡£
java.lang.StringÀàÊÇfinalÀàÐ͵ģ¬Òò´Ë²»¿ÉÒԼ̳ÐÕâ¸öÀà¡¢²»ÄÜÐÞ¸ÄÕâ¸öÀࡣΪÁËÌá¸ßЧÂʽÚÊ¡¿Õ¼ä£¬ÎÒÃÇÓ¦¸ÃÓÃStringBufferÀà
2¡¢int ºÍ Integer ÓÐÊ²Ã´Çø±ð
Java ÌṩÁ½ÖÖ²»Í¬µÄÀàÐÍ£ºÒýÓÃÀàÐͺÍԭʼÀàÐÍ£¨ ......

java junit µ¥Ôª²âÊÔ

½øÐе¥Ôª²âÊÔÄ¿µÄ

µ¥Ôª²âÊÔ±£Ö¤¾Ö²¿´úÂëµÄÖÊÁ¿
µ¥Ôª²âÊÔ¸ÄÁ¼ÏîÄ¿´úÂëµÄÕûÌå½á¹¹
µ¥Ôª²âÊÔ½µµÍ²âÊÔ¡¢Î¬»¤Éý¼¶µÄ³É±¾
µ¥Ôª²âÊÔʹ¿ª·¢¹ý³ÌÊÊӦƵ·±±ä»¯µÄÐèÇó
µ¥Ôª²âÊÔÓÐÖúÓÚÌáÉý³ÌÐòÔ±µÄÄÜÁ¦
µ¥Ôª²âÊÔ×Å
Ó¦¸ÃÓÉ¿ª·¢²¿ÃŽøÐе¥Ôª²âÊÔ
ÓɲâÊÔ²¿ÃŽøÐе¥Ôª²âÊÔµÄÎÊÌ⣺´ú¼Û¸ß£¬ÈËÊÖ²»×㣬µ¢ÎóÁ˲âÊÔ²¿ÃÅ¶ÔÆäËû²âÊÔµÄ× ......

JAVAÒÆÎ»ÔËËã·û

     ÒÆÎ»ÔËËã·û¾ÍÊÇÔÚ¶þ½øÖƵĻù´¡É϶ÔÊý×Ö½øÐÐÆ½ÒÆ¡£°´ÕÕÆ½ÒƵķ½ÏòºÍÌî³äÊý×ֵĹæÔò·ÖΪÈýÖÖ£º<<£¨×óÒÆ£©¡¢>>£¨´ø·ûºÅÓÒÒÆ£©ºÍ>>>£¨ÎÞ·ûºÅÓÒÒÆ£©¡£
¡¡¡¡ÔÚÒÆÎ»ÔËËãʱ£¬byte¡¢shortºÍcharÀàÐÍÒÆÎ»ºóµÄ½á¹û»á±ä³ÉintÀàÐÍ£¬¶ÔÓÚbyte¡¢short¡¢charºÍint½øÐÐÒÆÎ»Ê±£¬¹æ¶¨Êµ¼ÊÒÆ¶¯µ ......

JSF»ñµÃURL²ÎÊý(@JAVA)

        FacesContext context = FacesContext.getCurrentInstance();
        HttpServletRequest request = (HttpServletRequest) context.getExternalContext().getRequest();
        String parameterValue = request.g ......

JAVA Éú³ÉËæ»úÊýÊý×é

Ò»¡¢JAVA»ñÈ¡Ëæ»úÊýµÄ·½·¨
//ʹÓÃjava.lang.MathÀàµÄrandom()·½·¨
double a = Math.random();
System.out.println("0.0-1.0µÄËæ»úÊý£º" + a);
double b = Math.random()*100;
System.out.println("0.0-100.0µÄËæ»úÊý£º" + b);
int c = (int)(Math.random()*100);
System.out.println("0-100µÄËæ»úÕûÊý£º" + c);  ......
© 2009 ej38.com All Rights Reserved. ¹ØÓÚE½¡ÍøÁªÏµÎÒÃÇ | Õ¾µãµØÍ¼ | ¸ÓICP±¸09004571ºÅ