What is wrong?

Question

interface MathOperation{
int operation(int a, int b);
}
class Dcoder
{
public static void main(String args[])
{
MathOperation m=(int a,int b)->(a+b);
int x=m(8,5);
System.out.println("Hello, Dcoder!"+x);

}
}

Answer 1

class Dcoder should implement the interface in order to use its components. write class Dcoder implements MathOperation

Answer 2

Yes, you need to implement the interface in Dcoder Class