Question: java oop interface A { void foo(); } class B implements A{ public void foo(){} } class Main { public static void main(String[] args) {

java oop java oop interface A { void foo(); } class B implements A{

interface A { void foo(); } class B implements A{ public void foo(){} } class Main { public static void main(String[] args) { A a = new B();//ERROR???? } } Is there an error in the above code? Why or why not? =

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