Ò׽ؽØͼÈí¼þ¡¢µ¥Îļþ¡¢Ãâ°²×°¡¢´¿ÂÌÉ«¡¢½ö160KB

C++ÓëJava»ù±¾Êý¾ÝÀàÐͱȽÏ

 
C++ÓëJava»ù±¾Êý¾ÝÀàÐͼ°ËùÕ¼ÓÃÄÚ´æ¿Õ¼ä±È½Ï
----------------C++
-----------                              ------------Java
----------
(01)bool------------------1 byte                         01)boolean--1 byte
(02)char------------------1 byte                         
02)char------2 bytes
(03)signed char---------1 byte                         03)byte------1 byte
(04)unsigned char------1 byte
(05)wchar_t--------------2 bytes
(06)short-----------------2 bytes                        04)short-----2 bytes
(07)unsigned short-----2 bytes
(08)int--------------------4 bytes                        05)int---------4 bytes
(09)unsigned int--------4 bytes
(10)long------------------4 bytes
                       06)long-------8 bytes
(11)unsigned long-------4 bytes
(12)long long-------------8 bytes
(13)unsigned long long--8 bytes
(14)float-------------------4 bytes                      07)float-------4 bytes
(15)double----------------8 bytes                &nbs


Ïà¹ØÎĵµ£º

javaÈëÃÅ

 Javaѧϰ´ÓÈëÃŵ½¾«Í¨ 
Ò»¡¢ JDK (Java Development Kit) 
JDKÊÇÕû¸öJavaµÄºËÐÄ£¬°üÀ¨ÁËJavaÔËÐл·¾³£¨Java Runtime Envirnment£©£¬Ò»¶ÑJava¹¤¾ßºÍJava»ù´¡µÄÀà¿â(rt.jar)¡£²»ÂÛʲôJavaÓ¦Ó÷þÎñÆ÷ʵÖʶ¼ÊÇÄÚÖÃÁËij¸ö°æ±¾µÄJDK¡£Òò´ËÕÆÎÕJDKÊÇѧºÃJavaµÄµÚÒ»²½¡£×îÖ÷Á÷µÄJ ......

Javaѧϰ±Ê¼Ç¢Ü

 Ñ§Ï°Java³ÌÐòÖ÷Òª°üº¬ÒÔÏÂËĸö²¿·Ö¡£
(1)±à¼­´úÂë  edit code
(2)±£´æ´úÂë  save code
(3)±àÒë´úÂë  compiler code
(4)ÔËÐгÌÐò  run program
µÚÒ»¸ö³ÌÐòÎļþHelloWorld.java
public class HelloWorld {
   public static void main(String[] args){
     ......

javaÖÐÉú³É32λËæ»úID

 Ôںܶàʱºò£¬ÎÒÃÇÐèÒª×Ô¶¯Éú³ÉÓÀÔ¶²»»áÖظ´µÄID£¬Òò´ËÎÒÃÇ»áÓõ½ÒÔϵĴúÂëÀ´ÊµÏÖ£º
×¢Ò⣺ÐèÒª¼ÓÈëÁ½¸öapacheµÄ°ü,´úÂëºÍ°üÇë´Óhttp://www.blogjava.net/afei0922/articles/129589.html ÏÂÔØ
package cn.com.cinda.rtx.state;
import org.apache.commons.id.Hex;

public class RandomCode {
pub ......

JAVA³£ÓÃÀàµÄʹÓ÷½·¨

JAVA³£ÓÃÀàµÄʹÓ÷½·¨
£±¡¢IntegerÀà
£²¡¢FloatÀà
£³¡¢DoubleÀà
£´¡¢CharacterÀà
£µ¡¢StringÀà
£¶¡¢StringTokenizerÀà
£·¡¢StringBufferÀà
£¸¡¢RandomÀà
1£®IntegerÀàµÄʹÓ÷½·¨
Interger£ºÕûÊýÀàÐÍ
£±¡¢ÊôÐÔ¡£
static int MAX_VALUE£º·µ»Ø×î´óµÄÕûÐÍÊý£»
static int MIN_VALUE£º·µ»Ø×îСµÄÕûÐÍÊý£»
static C ......

Java¹Ø¼ü×Öfinal¡¢staticʹÓÃ×ܽ᡾ת¡¿

 Ò»¡¢final
        ¸ù¾Ý³ÌÐòÉÏÏÂÎÄ»·¾³£¬Java¹Ø¼ü×ÖfinalÓГÕâÊÇÎÞ·¨¸Ä±äµÄ”»òÕß“ÖÕ̬µÄ”º¬Ò壬Ëü¿ÉÒÔÐÞÊηdzéÏóÀà¡¢·Ç³éÏóÀà³ÉÔ±·½·¨ºÍ±äÁ¿¡£Äã¿ÉÄܳöÓÚÁ½ÖÖÀí½â¶øÐèÒª×èÖ¹¸Ä±ä£ºÉè¼Æ»òЧÂÊ¡£
        finalÀ಻Äܱ»¼Ì³Ð£ ......
© 2009 ej38.com All Rights Reserved. ¹ØÓÚE½¡ÍøÁªÏµÎÒÃÇ | Õ¾µãµØͼ | ¸ÓICP±¸09004571ºÅ