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JAVAÖµ´«µÝ(call by value)

public class Foo {
 static void operate(StringBuffer x,StringBuffer y){
  x.append(y);
  y=x;
 }
 public static void main(String args[]){
  StringBuffer a = new StringBuffer("A");
  StringBuffer b = new StringBuffer("B");
  
  operate(a,b);
  System.out.println(a+","+b);
 }
}
Êä³öAB ,  B
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x.append(y);//»áʹa±ä³ÉAB,
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 *
 * Copyright 2005 BeanSoft Studio. All rights reserved.
 * PROPRIETARY/CONFIDENTIAL. Use is subject to license terms.
 */
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