public class main {     public static void main(String [] args)     {         Dog dog1=new Dog(“Spark”,2),dog2=new Dog(“Sammy”,3);         swap(dog1, dog2);         System.out.println(“dog1 is ”+ dog1);         System.out.println(“dog2 is ”+ dog2);     }     public static void swap(Dog a, Dog b)     {         String nameA = a.getName();         String nameB = b.getName();         a.setName(nameB);         b.setName(nameA);     }     What is the output of the main()?

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