java ²Ù×÷×¢²á±í
import java.util.prefs.*;
public class Registery {
String[] keys = {"oa"};
String[] values = {"reg"};
//°ÑÏàÓ¦µÄÖµ´¢´æµ½±äÁ¿ÖÐÈ¥
public void writeValue() {
// HKEY_LOCAL_MACHINE\Software\JavaSoft\prefsÏÂдÈë×¢²á±íÖµ.
Preferences pre = Preferences.systemRoot().node("/javaplayer");
for (int i = 0; i < keys.length; i++) {
pre.put(keys[i], values[i]);
}
}
//¶ÁÈ¡±äÁ¿
public String readValue() {
// HKEY_LOCAL_MACHINE\Software\JavaSoft\prefs϶Áȡע²á±íÖµ.
Preferences pre = Preferences.systemRoot().node("/javaplayer");
return pre.get("oa", "def");
}
public static void main(String[] args) {
Registery reg = new Registery();
reg.writeValue();
System.out.println(reg.readValue());
}
}
Ïà¹ØÎĵµ£º
½ñÌìÀ´½²Ï¹ØÓÚJavaÒì³£ÎÊÌâ¡£ÆäʵÔÚ¿ª·¢¹ý³ÌÖÐJavaµÄÒì³£´¦Àí²¢Ã»ÓÐÏëÏóÖеÄÄÇô¼òµ¥£¬¼òµ¥µÄ˵Java²»×ãÖ®´¦£¬ÄÇôÒì³£´¦Àí»úÖÆÒ²¿ÉÒÔËãÒ»¸ö£¨¸öÈ˹۵㣩¡£ÎªÊ²Ã´ÎÒ»áÕâÑùÈÏΪÄØ£¿ÏÂÃæÎÒ½«ÔÚ¿ª·¢¹ý³ÌÖÐÓÃ×Ô¼ºµÄ˼ά·½Ê½À´½âÊÍÏÂÒ쳣ʹÓá£
JavaµÄÒì³£´óÖ·ÖΪ3Àࣺ
ExceptionÀà¡¢RuntimeExceptionÀàºÍErrorÀ࣬£¨¾ßÌåÒâË ......
×î½üÓÐÍøÓÑÎÊ£ºÈçºÎÈÃÒ»¸öJARÎļþËæJVMÆô¶¯Ê±ÔËÐУ¿java.exeÊDz»Äܹ»×ö³ÉÕâÑùµÄ£¬²»¹ý¿ÉÒÔ×Ô¼º¶¨ÖÆjava.exe£¬¶¨ÖÆjava.exeÔÚÈçÏÂÇé¿öÓÐÓãº
1.²»Ïë³ÌÐòµÄ½ø³ÌÃûÏÔʾΪjava.exe
2.Ï£Íû³ÌÐòË«»÷¾Í¿ÉÒÔÔËÐС£
ÏÂÃæÊÇÒ»¶ÎʾÀý´úÂ룺
// JVM_CPP.cpp : Defines the entry point for the console application.
//
#include ......
ÒªÏëѧºÃJava£¬Ê×ÏÈÒªÖªµÀJavaµÄ´óÖ·ÖÀà¡£ÎÒÃÇÖªµÀ£¬×Ô´ÓSunÍƳöJavaÒÔÀ´£¬¾ÍÁ¦Í¼Ê¹Ö®ÎÞËù²»°ü£¬ËùÒÔJava·¢Õ¹µ½ÏÖÔÚ£¬°´Ó¦ÓÃÀ´·ÖÖ÷Òª ·ÖΪÈý´ó¿é£ºJ2SE,J2MEºÍ J2EE,ÕâÒ²¾ÍÊÇSun ONE(Open Net Environment)Ìåϵ¡£J2SE¾ÍÊÇJava2µÄ±ê×¼°æ£¬Ö÷ÒªÓÃÓÚ×ÀÃæÓ¦ÓÃÈí¼þµÄ±à³Ì£»J2MEÖ÷ÒªÓ¦ÓÃÓÚǶÈëÊÇϵͳ¿ª·¢£¬ÈçÊÖ»úºÍPDAµÄ±à ³Ì£» ......
±¾ÎÄÀ´×ÔºÍÄãÔÚÒ»ÆðµÄ²©¿Í£¬ÔÎıêÌ⣺¡¶JVMµ÷ÓÅ×ܽá(¶þ)-һЩ¸ÅÄî¡·¡£±¾ÎÄ×ܽáÁËJVM¸ÅÄîÖеÄJava¶ÔÏóµÄ´óС£¬ÒÔ¼°ÈýÖÖÒýÓÃÀàÐ͵Ķ¨ÒåÓëÇø·Ö¡£ »ù±¾Êý¾ÝµÄÀàÐ͵ĴóСÊǹ̶¨µÄ£¬ÕâÀï¾Í²»¶à˵ÁË¡£¶ÔÓÚ·Ç»ù±¾ÀàÐ͵ÄJava¶ÔÏó£¬Æä´óС¾ÍÖµµÃÉÌȶ¡£ ÔÚJavaÖУ¬Ò»¸ö¿ÕObject¶ÔÏóµÄ´óСÊÇ8byte£¬Õâ¸ö´óСֻÊDZ£´æ¶ÑÖÐÒ»¸öûÓÐÈÎ ......
ÎÒÃÇÓ¦ÓÃijÖÖÊý¾ÝÀàÐÍʱ£¬ºÜ¶àʱºòÒª½øÐÐÀàÐÍת»»µÈ²Ù×÷¡£ÔÚDelphiÖУ¬ÀàÐÍת»»º¯Êý¸Ð¾õºÜÁãÂÒ£¬Èç×Ö·û´®×ªÕûÐΡ¢ÕûÐαä×Ö½ÚÊý×éµÈµÈ¡£
¶øÔÚJAVAÖУ¬ÒѾ½«JavaµÄ»ù±¾Êý¾ÝÀàÐÍÓëÆäÌṩÁËһЩ³£ÓõÄÀàÐͲÙ×÷µÄ·½·¨½øÐÐÁË·â×°£¬ÕâÑù²ÅÓÐÒ»ÇнԶÔÏóµÄ¸Ð¾õ¡£
ÔÚѧϰ°ü×°Ààʱ£¬ÕÒÁ˼¸¸ö±È½ÏÓÐÒâ˼µÄÀà½øÐÐÁËѧϰ£¡
Integer
I ......