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用一杯咖啡時(shí)間寫(xiě)代碼
2017-08-05
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2017-08-05
public class AbstDemo {
public static void main(String[] args) {
????Person p1 = new Chinese();
????Person p2 = new American();
????p1.say();
????p2.say();
????}
}
abstract class Person{
abstract void say();
}
class Chinese extends Person{
void say() {
????System.out.println("中國(guó)人說(shuō)漢語(yǔ)");
????}
}
class American extends Person{
void say() {
????System.out.println("美國(guó)人說(shuō)英語(yǔ)");
????}
}