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 prin

Posted 2020-08-09 HRZJ

package com.homework1;

public interface InterfaceA {

    //声明抽象方法
    void printCapitalLetter();
}

package com.homework1;

public interface InterfaceB {

    //声明抽象方法
    void printLowercaseLetter();
}

package com.homework1;

public class Print implements InterfaceA, InterfaceB {

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

    }

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

    }

}

package com.homework1;

public class Print implements InterfaceA, InterfaceB {

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

    }

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

    }

}