java - An interface with different method parameters -

java - An interface with different method parameters -

i want declare interface utilize several classes classes have method different parameters

interface:

public interface operation { public int add(); }

class a:

public class classa implement operation{ public int add(int id,string name); }

class b:

public class classb implement operation{ public int add(string name); }

how impelement of interface?

you create operand-object

public interface operation { public int add(operand o); }

or

public interface operation { public int add(operand... o); }

java class interface