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I. [15%) Which one causes compilation is deleted, what is the output when the program is executed? statement from sl to s6 (see below) cause compilation error? Assume the statement that class X void 120 f System.out.println(XXX);3 Answeri The statement causes compilation errors: class Y extends X void £20 1 System.out.printin(YYY); void f30 &System.out.printinAAA): class Z extends Y void 120 ( System.out.printinzzz; void 130 System.out.println(BBB); The output of the program (after the statement that causes compilation is deleteod) class Testf static void g(Object a) X aa- (X) a; aa.fl0: public static void main(String argsD Object obj-new Y0: obj.toString0 g(obj); obj = new ZO; obj.30: g(obj); s1 I/ s2 Il s3 I/ s4 Il s5 / s6
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Answer #1

Out of all the statements, s5 gives compilation error. Because, Now obj of Object iass assigned to class Z();
We are usign the parent class object to call a method in teh subclass. It only works when the parent class has the same method(f3) defined. i.e This call would only work when Object class has the method f3.

So, answer is s5

class Test static void g (Object a) f X aa= (X) a; aa.fl public static void main (String[l args) object obj new Y obj.toStrin

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