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Dynamic Execution With forName()

public class Cat {

public static void main(String[] argv)

throws ClassNotFoundException,

IllegalAccessException, InstantiationException {

Class c = Class.forName(argv[0]);

Animal myToy = (Animal) c.newInstance();

myToy.play();

}

}

public class Animal {

public void play() {

System.out.println(“Playing with animal”);

}

}

public class Mouse extends Animal {

public void play() {

System.out.println(“Playing with mouse”);

}

}

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