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·´Ïò¿ØÖÆ Inversion of Control(JAVA Application)

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java Ïß³ÌС½á

1, ΪʲôwaitÓënotify֮ǰ±ØÐëÒª¼Ósynchronized?
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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");
  
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