// Comparator.java: A class with static data items comparision methods
class Comparator {
	public static int max(int a, int b)
	{
		if( a > b)
			return a;
		else
			return b;
	}

	public static String max(String a, String b)
	{
		if( a.compareTo (b) > 0)
			return a;
		else
			return b;
	}
}

class MyClass {
  public static void main(String args[])
  {
	String s1 = "Melbourne"; 
	String s2 = "Sydney";
	String s3  = "Adelaide";

	int a = 10;
	int b = 20;

	System.out.println(Comparator.max(a, b)); // which number is big
	System.out.println(Comparator.max(s1, s2)); // which city is big
	System.out.println(Comparator.max(s1, s3)); // which city is big
  }
}