log.info "starting"
// we use class to create objects of a class
Planet p1 = new Planet()
Planet p2 = new Planet()
Planet p3 = new Planet()
//Planet.name = "Pluto" illegal
Planet.shape = "Circle"
p1.name = "earth"
//p1.shape = "circle"
p2.name = "jupiter"
//p2.shape = "circle"
p3.name = "mars"
//p3.shape = "circle"
log.info p1.name+" "+p1.shape
log.info p2.name+" "+p2.shape
log.info p3.name+" "+p3.shape
p1 = p2
log.info "*************************************"
log.info p1.name+" "+p1.shape
log.info p2.name+" "+p2.shape
log.info p3.name+" "+p3.shape
p1.name = "pluto"
log.info "*************************************"
log.info p1.name+" "+p1.shape //pluto
log.info p2.name+" "+p2.shape //pluto
log.info p3.name+" "+p3.shape
class Planet{
// variables and functions
def name // non static variable
def static shape // static variable
}
运行结果：
Tue Oct 06 16:27:27 CST 2015:INFO:starting Tue Oct 06 16:27:27 CST 2015:INFO:earth Circle Tue Oct 06 16:27:27 CST 2015:INFO:jupiter Circle Tue Oct 06 16:27:27 CST 2015:INFO:mars Circle Tue Oct 06 16:27:27 CST 2015:INFO:************************************* Tue Oct 06 16:27:27 CST 2015:INFO:jupiter Circle Tue Oct 06 16:27:27 CST 2015:INFO:jupiter Circle Tue Oct 06 16:27:27 CST 2015:INFO:mars Circle Tue Oct 06 16:27:27 CST 2015:INFO:************************************* Tue Oct 06 16:27:27 CST 2015:INFO:pluto Circle Tue Oct 06 16:27:27 CST 2015:INFO:pluto Circle Tue Oct 06 16:27:27 CST 2015:INFO:mars Circle