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A¡¢abstract class Demo1{ abstract void speak(); abstract void eat(); } B¡¢interface Demo2{ void speak(); void eat(); } C¡¢interface Demo3{ void speak(); void eat(){}; }

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public static void main(String[] args) { Demo demo = new Demo(); demo.show(new Car() { public void run() {

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c.run(); } }

abstract class Car { public void run() {

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public static void show(String s1,String s2){ s1 = s1 +¡±q¡±; s2 = s2 + s1; } }

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