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/**
*̽¾¿Öµ´«µÝÓëÒýÓô«µÝ
* ¿´ÁËºÃ¶à¹ØÓÚjavaÖµ´«µÝºÍÒýÓô«µÝµÄÎÄÕ£¬Éî¸ÐÃÔ»ó
* ËùÒÔ¾Í×Ô¼º¿´¿´´óϺÃǵÄ˼·£¬×Ô¼ºÓôúÂ붯ÊÖʵÑ飬
* ¸Ð¾õͦˬµÄ¡£
* @author javaħÈË
* 2009-07-20 ÏÂÎç
*/
public class Test {
// method1
public static void changValue1(int a, int b) {
int c = a;
a = b;
b = c;
}
// method2£¨´Ó½á¹ûÀ´¿´£ºÏÔ¶øÒ×¼û£ºÖµ´«µÝ£©
public static void print1() {
int x = 0;
int y = 1;
changValue1(x, y); // ´«µÝµÄÊÇÖµµÃcoapy£¬x,y×ÔÉíû±ä»¯¡£
System.out.println("x=" + x); // Êä³ö:x=0
System.out.println("y=" + y); // Êä³ö:y=1
}
/**
* ¸öÈË×ܽ᣺ÒÔÉÏ·½·¨Ã»ÓÐÍê³ÉÎÒÃǵÄÀíÏë¡£×Ðϸ·ÖÎöÈçÏ£¬¿´¿´ÄÚ´æÖеĴ洢·½Ê½£º
* method2·½·¨µÄÁ½¸ö³ÉÔ±±äÁ¿£º
* ±äÁ¿ ÄÚ´æ
* x--------->[Öµ0]
* y--------->[Öµ1]
* µ÷ÓÃchangValue(x,y)ʱ£¬ÄÚ´æÖÐÊÇÕâÑùµÄÇé¾°£º
* x------>[Öµ0]
* £¨Ò»´Î¸´ÖÆ£©
* a------>[Öµ0]
* yͬÀí
* ´Ëʱ£¬ºÃÏñÓëx,yûʲô¹ØÏµÁ˰¡¡£
*
*/
// method3
public static void changeValue2(StringBuffer a) {
a.append(" zhangxiangrong");
}
// method4(´Ó½á¹ûÀ´¿ª£ºÓ¦¸ÃÊÇÒýÓô«µÝ)
public static void print2() {
StringBuffer sb = new StringBuffer("I'm");
changeValue2(sb); // ´«µÝµÄÊÇÒýÓã¬ËùÒÔÖ´ÐÐÍêºó£¬sbµÄÖµ²»ÔÙÊÇ"I'm"ÁË¡£
System.out.println("sb=" + sb.toString()); // Êä³ö£ºI'm zhangxiangrong
}
/**
* ¸öÈË×ܽ᣺Õâ¸öºÍÉÏÃæµÄÀý×ÓÃ²ËÆ²î²»¶à£¬µ«¿ÉÒԸıäsbµÄµÄÖµ¡£¿´¿´ÄÚ´æÖÐÇé¾°
* ¿ªÊ¼£º
* sb---------->[Öµ"I'm"]
* µ÷ÓÃchangeValue2(StringBuffer a)ʱ£¬¾Í´ó±äÑùÁË£¬£¨ÒòΪ²»ÊÇ¿½±´ÁË£©
* sb---------->[Öµ"
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