Java基础-接口．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 方法 实现输出大写英文字母表的功能，printLowerca

package hanqi;

public interface InterfaceA {
    
    void    printCapitalLetter();

}

package hanqi;

public interface InterfaceB {

    void printLowercaseLetter();
}

package hanqi;

public  class Print implements InterfaceA, InterfaceB {
    
    public void printLowercaseLetter()
    {
        System.out.println("abcdefg");
    }
     
    public void printCapitalLetter()
    {
        System.out.println("ABCDEFG");
    }
    

}

package hanqi;

public class TestJiekou {

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