[Training Video - 4] [Groovy] Optional parameter in groovy

Employee.log=log
Employee e1 = new Employee()

log.info e1.add(1,2,3,4)
// optional parameters in groovy
log.info e1.add(2,3)
log.info e1.add(2,3,10)

class Employee {
	def static log

	public def add(a,b,c=3,d=10){
		return a+b+c+d
	}
}

Run result:

Tue Oct 06 19:31:50 CST 2015:INFO:10
Tue Oct 06 19:31:50 CST 2015:INFO:18
Tue Oct 06 19:31:50 CST 2015:INFO:25