接口题

34．编写2个接口：InterfaceA和InterfaceB；在接口InterfaceA中有个方法void printCapitalLetter()；在接口InterfaceB中有个方法void printLowercaseLetter()；然 后写一个类Print实现接口InterfaceA和InterfaceB，要求printCapitalLetter()方法 实现输出大写英文字母表的功能，

package zuoye;

public class jiekoua 
{
    public interface IInterfaceA {
    void printCapitalLetter();
    }

}

package zuoye;

public class jiekoub
{
    public interface IInterfaceB 
    {
        void printLowercaseLetter();

    }

}

package zuoye;

import zuoye.jiekoua.IInterfaceA;
import zuoye.jiekoub.IInterfaceB;

public class Print implements IInterfaceA, IInterfaceB 
{

    @Override
    public void printLowercaseLetter() 
    {
        System.out.println("abc");

    }

    @Override
    public void printCapitalLetter() 
    {
        System.out.println("ABC");

    }

package zuoye;

public class E2 {

    public static void main(String[] args) {
        Print p=new Print();
        Print a=p;
        Print b=p;
        a.printCapitalLetter();
        b.printLowercaseLetter();

    }

}