import edu.neu.ccs.demeterf.*;
/**
 * This class counts the number of variables appeared in the given formula
 *
 */
abstract class GenericCombine_IDb_add2 extends IDb {
// GENERIC combine methods, up to 2 parts	
	// 2 parts
	Float combine(Object o, Float n1, Float n2){ return n1+n2; }
	// 1 part
	Float combine(Object o, Float n1){ return n1; }
	// 0 part
	Float combine(Object o){ return 0.0f; }
}