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

JAVAʵÏֵĴóÕûÊý¼Ó·¨

public class Test{ 
  public static String addBigNum(String str1,String str2){
     //ÕÒ³öÁ½×Ö·û´®µÄ³¤¶Ì£¬·½±ãºó±ßÒýÓã»
     String longer = str1.length() > str2.length()? str1 : str2;
     String shorter = str1.length() < str2.length()? str1 : str2;
     int[] a = new int[longer.length()];
     int temp = shorter.length();
     int rise = 0;
     int m , n ;
     StringBuffer sb = new StringBuffer();
     for(int i = a.length - 1 ; i >= 0 ; i--){
       if((i - a.length + temp) >= 0 ){
         m = Integer.parseInt(String.valueOf(longer.charAt(i)));
         n = Integer.parseInt(String.valueOf(shorter.charAt(i - a.length + temp)));
         a[i] = (m + n  + rise) % 10;
         rise = (m + n +  rise) / 10;
       } else {
          a[i] =  (Integer.parseInt(String.valueOf(longer.charAt(i))) + rise) % 10;
          rise =  (Integer.parseInt(String.valueOf(longer.charAt(i))) + rise)  / 10;
       }
     }
     for (int i = 0; i < a.length; i++) {
   sb.append(String.valueOf(a[i]));
   }
     return new String(sb);
   }
}
//ûÓп¼ÂǸºÕûÊýµÄÇé¿ö£¬ÐèÒªµÄ»°Ðè¶Ô´úÂë×öЩµ÷Õû¡£


Ïà¹ØÎĵµ£º

JavaÖеÄIOÁ÷֪ʶ×ܽᣨת£©

×ܽáÒ»£º
Java IOµÄÒ»°ãʹÓÃÔ­Ôò£º
Ò»¡¢°´Êý¾ÝÀ´Ô´£¨È¥Ïò£©·ÖÀࣺ
1¡¢ÊÇÎļþ£º FileInputStream, FileOutputStream, FileReader, FileWriter
2¡¢ÊÇbyte[]£ºByteArrayInputStream, ByteArrayOutputStream
3¡¢ÊÇChar[]: CharArrayReader, CharArrayWriter
4¡¢ÊÇString: StringBufferInputStream, StringReader, StringW ......

javaµÄcp²ÎÊýʹÓÃ


java -cp .;c:\dir1\lib.jar Test
-cp ºÍ -classpath Ò»Ñù£¬ÊÇÖ¸¶¨ÀàÔËÐÐËùÒÀÀµÆäËûÀàµÄ·¾¶£¬Í¨³£ÊÇÀà¿â£¬jar°üÖ®À࣬ÐèҪȫ·¾¶µ½jar°ü£¬windowÉϷֺœ;”
·Ö¸ô£¬linuxÉÏÊǷֺœ:”·Ö¸ô¡£²»Ö§³ÖͨÅä·û£¬ÐèÒªÁгöËùÓÐjar°ü£¬ÓÃÒ»µã“.”´ú±íµ±Ç°Â·¾¶¡£
ËäÈ»ÏÖÔÚ¶¼ÓÐeclipseÖ®ÀàµÄIDE ......

Java equals

boolean java.lang.Object.equals(Object obj)
Indicates whether some other
object is "equal to" this one.
The equals method implements an
equivalence relation on non-null object references:
It is reflexive: for
any non-null reference value x, x.equals(x) should return true.
It ......

javaµÄ»ù±¾Ë¼Ïë

³     Java ÓïÑÔÖУ¬¶Ô¸÷ÖÖ±äÁ¿¡¢·½·¨ºÍÀàµÈÒªËØÃüÃûʱʹÓõÄ×Ö·ûÐòÁгÆÎª±êʶ·û¡£
      --·²ÊÇ×Ô¼º¿ÉÒÔÆðÃû×ֵĵط½¶¼½Ð±êʾ·û£¬¶¼×ñÊØ±êʾ·ûµÄ¹æÔò¡£
³     Java ±êʶ·ûÓÐÈçÏÂÃüÃû¹æÔò£º
–     ±êʶ·ûÓÉ×Öĸ¡ ......
© 2009 ej38.com All Rights Reserved. ¹ØÓÚE½¡ÍøÁªÏµÎÒÃÇ | Õ¾µãµØÍ¼ | ¸ÓICP±¸09004571ºÅ