18.A.sayB.talkC.speakD.tell
18.
A.say
B.talk
C.speak
D.tell
相关考题:
classBird{staticvoidtalk(){System.out.print(chirp);}}classParrotextendsBird{staticvoidtalk(){System.out.print(hello);}publicstaticvoidmain(String[]args){Bird[]birds={newBird(),newParrot()};for(Birdb:birds)b.talk();}}结果为:()A.chirpchirpB.chirphelloC.hellohelloD.编译失败
现有:classBird{voidtalk(){System.out.print(chirp);}}classParrot2extendsBird{protectedvoidtalk(){System.out.print(hello);publicstaticvoidmain(String[]args){Bird[]birds={newBird(),newParrot2()};for(Birdb:birds)b.talk();}}结果是什么?()A.chirpchirpB.hellohelloC.chirphelloD.编译错误
现有: class Bird { void talk() { System.out.print("chirp "); } } class Parrot2 extends Bird { protected void talk() { System.out.print("hello "); public static void main(String [] args) { Bird [] birds = {new Bird(), new Parrot2 () }; for( Bird b : birds) b.talk () ; } } 结果是什么 ?() A、 chirp chirpB、 hello helloC、 chirp helloD、编译错误
单选题class Bird { static void talk() { System.out.print("chirp "); } } class Parrot extends Bird { static void talk() { System.out.print("hello "); } public static void main(String [] args) { Bird [] birds = {new Bird(), new Parrot()}; for( Bird b : birds) b.talk(); } } 结果为:()Achirp chirpBchirp helloChello helloD编译失败
单选题现有: class Bird { void talk() { System.out.print("chirp "); } } class Parrot2 extends Bird { protected void talk() { System.out.print("hello "); public static void main(String [] args) { Bird [] birds = {new Bird(), new Parrot2 () }; for( Bird b : birds) b.talk () ; } } 结果是什么 ?()A chirp chirpB hello helloC chirp helloD编译错误