public class Man extends Motion { void walk() { System.out.print("The man is walking."); } void run() { System.out.print("The man is running."); } }
B.
public class Man implements Motion { void walk() { System.out.print("The man is walking."); } void run() { System.out.print("The man is running."); } }
C.
public abstract class Man implements Motion { void walk() { System.out.print("The man is walking."); } }
D.
public abstract class Man implements Motion { public void walk() { System.out.print("The man is walking."); } public void run() { System.out.print("The man is running."); } }
【单选题】给定如下 Java程序代码,在横线处加入( )语句,可以使这段代码编译通过。 interface Dao{ public int count(int i); } public class Test implements Dao { public int count(int i){ return i % 9; } public static void main(String[] arg...