Groovy屬性訪問

class Car {    def speed = 10}Car car = new Car()PRintln car.speed // 10println car.getSpeed() // 10car.setSpeed(100)println car.getSpeed() // 1002、假如不想修改使用final修飾符
class Car {    def speed = 10	final generationDate		Car(gd) {		generationDate = gd	}}Car car = new Car(2017)println car.generationDate // 2017// car.generationDate = 2018如果調用car.generationDate = 2018會產生ReadOnlyPropertyException異常3、可以添加set方法重定義
class Car {    def speed = 10		def setSpeed(sp) {		speed = sp * 2	}}Car car = new Car()println car.speed // 10car.speed = 100println car.speed // 2004、只要提供了get方法，就能使用屬性的訪問方式
class Car {	def getSpeed() {		100	}}Car car = new Car()println car.speed // 1005、構造函數
class Car {    def speed = 10}car = new Car(speed : 100)println car.speed // 100