javaÖеİËÖÖ»ù±¾Êý¾ÝÀàÐÍÓÐÆäÏà¶ÔÓ¦µÄ°ü×°ÀàÐÍ£¬µ«°ü×°ÀàÐÍ×÷Ϊ²ÎÊý´«µÝʱ£¬ÊÇÊôÓÚÖµ´«µÝ»¹ÊÇÒýÓô«µÝÄØ£¿
ʾÀý£º
public static void fun(Integer i){
i=i+2;
}
public static void main(String[] args) {
Integer p=new Integer(5);
fun(p);
System.out.println(p);
£ý
Êä³öµÄ½á¹ûÈÔÈ»ÊÇ5£¬ËµÃ÷°ü×°Àà×÷Ϊ²ÎÊý´«µÝʱ£¬ÈÔÊÇÖµ´«µÝ£¬ÕâÖÖÉè¼Æ³õÖÔ¿ÉÒÔÊÇÈÃÈ˾õµÃjavaÊǺܴ¿µÄÃæÏò¶ÔÏó¡£
Áí£º
List list=new ArrayList();
list.add(5);
¼¯ºÏÖÐÓ¦¸Ã´æ´¢µÄÊÇobject¶ÔÏó£¬ÎªÊ²Ã´¿ÉÒÔµ¥¶À±£´æ»ù±¾Êý¾ÝÀàÐÍÄØ£¬ÔÚÕâÖÖ²Ù×÷ÖÐÐéÄâ»ú×öÁËÒ»¸ö×Ô¶¯×°ÏäµÄ²Ù×÷£¬½«»ù±¾Êý¾ÝÀàÐÍת»»³ÉÁËËüÏàÓ¦µÄ°ü×°Àֻ࣬²»¹ýʹÓÃÕß²»ÐèÒª¹ØÐĶøÒÑ¡£