public class hh {public static void main (String args[]){A aa = new A();aa.num =5;hh t = new hh();System.out.println("11 aa="+aa + "num="+aa.num);t.test(aa);System.out.println("22 aa="+aa + "num="+aa.num);} void test(A a){A ab = new A();a = ab;System

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