java入门第二季--面向对象实现人类说话,中国人说汉语，美国人说英语

人类说话,中国人说汉语，美国人说英语继承实现/javaDemo6/src/com/imooc/Person.javapackage com.imooc;public class Person { public void say() { System.out.println(“人类具有说话的能力”); }}/javaDemo6/src/com/imooc/Chinese.javapackage com.imooc;public class Chinese extends Person{ public void say() { System.out.println(“中国人说汉语”); }}/javaDemo6/src/com/imooc/American.javapackage com.imooc;public class American extends Person{ public void say() { System.out.println(“美国人说英语”); }}/javaDemo6/src/com/imooc/Test.javapackage com.imooc;public class Test { public static void main(String[] args) { // TODO Auto-generated method stub Chinese p1 = new Chinese(); American p2 = new American(); p1.say(); p2.say(); }}抽象类实现/javaDemo6/src/com/imooc/APerson.javapackage com.imooc;public abstract class APerson { public abstract void say();}/javaDemo6/src/com/imooc/Chinese.javapackage com.imooc;public class Chinese extends APerson{ public void say() { System.out.println(“中国人说汉语”); }}/javaDemo6/src/com/imooc/American.javapackage com.imooc;public class American extends APerson{ public void say() { System.out.println(“美国人说英语”); }}/javaDemo6/src/com/imooc/Test.javapackage com.imooc;public class Test { public static void main(String[] args) { // TODO Auto-generated method stub APerson p1 = new Chinese(); APerson p2 = new American(); p1.say(); p2.say(); }}