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ZT:http://javahy.javaeye.com/blog/384871
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package reference;
class Obj{
¡¡String str = "init value";
¡¡public String toString(){
¡¡¡¡return str;
¡¡}
}
public class ObjRef{
¡¡Obj aObj = new Obj();
¡¡int aInt = 11;
¡¡public void changeObj(Obj inObj){
¡¡¡¡inObj.str = "changed value";
¡¡}
¡¡public void changePri(int inInt){
¡¡¡¡inInt = 22;
¡¡}
¡¡public static void main(String[] args)
¡¡{
¡¡¡¡ObjRef oRef = new ObjRef();
¡¡¡¡System.out.println("Before call changeObj() method: " + oRef.aObj);
¡¡¡¡oRef.changeObj(oRef.aObj);
¡¡¡¡System.out.println("After call changeObj() method: " + oRef.aObj);
¡¡¡¡System.out.println("==================Print Primtive=================");
¡¡¡¡System.out.println("Before call changePri() method: " + oRef.aInt);
¡¡¡¡oRef.changePri(oRef.aInt);
¡¡¡¡System.out.println("After call changePri() method: " + oRef.aInt);
¡¡}
}
/* RUN RESULT
Before call changeObj() method: init value
After call changeObj() method: changed value
==================Print Primtive=================
Before call changePri() method: 11
After call changePri() method: 11
*
*/
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