Question: package q06; public class Main { public static void main(final String argv) { //implement the necessary interface and abstract class hierarchy // B::foo // B::foo

package q06; public class Main { public static void main(final String argv) { //implement the necessary interface and abstract class hierarchy // B::foo // B::foo // B::foo I ib = new B(); A ab = new B(); B bb = new B(); go(ib); go(ab); go(bb); } private static void go(final I i) { i.foo(); } }

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