What will be the output of the following program?
import java.util.*;
class Dog implements Comparator<Dog>, Comparable<Dog> {
String name;
int age;
Dog() {
}
Dog(String n, int a) {
name = n;
age = a;
}
public int compareTo(Dog d) {
return (name).compareTo(d.name);
}
public int compare(Dog d, Dog d1) {
return d.age - d1.age;
}
}
public class Example {
public static void main(String args[]) {
List<Dog> list = new ArrayList<Dog>();
list.add(new Dog("Shaggy", 3));
list.add(new Dog("Lacy", 2));
list.add(new Dog("Roger", 10));
list.add(new Dog("Tommy", 4));
list.add(new Dog("Tammy", 1));
Collections.sort(list);
for (Dog a : list)
System.out.print(a.name + ", ");
Collections.sort(list, new Dog());
System.out.println(" ");
for (Dog a : list)
System.out.print(a.name + ":" + a.age + ", ");
}
}
Compare Roll Number
