10. Analyze the following code public class Test { public static void main(Strin
ID: 3714198 • Letter: 1
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10. Analyze the following code public class Test { public static void main(Stringl] args) { Object a1 = new AOs Object a2-new Obiect0; System.out.println(al); System.out.println(a2); class A { int x; public String toString0 i return "A's x is " +x; a. The b. When executing Svstem.out.println(al), the toString0 method in the Object class is c. When executing Svstem.out.println(a2), the toString0 method in the Object class is d. When executing Svstem.out.println(al), the toString0 method in the A class is invoked. program cannot be compiled, because al) is wrong and it should be replaced by System.out.println(al.toString0); invoked. invoked.Explanation / Answer
a. This is false. We can directly print a java object. It will internally make a call to toString() method
b. False. When super class variable is used to refer subclass object. First preference will be given to method in the sub class. Only if method is not found in the subclass, then method in the superclass will be invoked. This will be determined at runtime
c. True
d. True. Because, preference will be given to subclass method
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