@FunctionalInterface
public interface MyComparator{
    public  boolean compare(int n1,int n2);
}

class Main {
    public static void main(String[] args) {
     //defined the above interface compare method here using lambda expression.
     //here we dont provide the type "int" since compiler is able to infer that it is int data type.Compiler is intelligent enough to know that
	MyComparator obj=(n1,n2)->n1>n2;

	boolean compare=obj.compare(40,30);
    }
}