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  • 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,

    //接口InterfaceA

    package jieKou;

    public interface IInterfaceA {
    void printCapitalLetter();

    }

    //接口InterfaceB

    package jieKou;

    public interface IInterfaceB {
    void printLowercaseLetter();

    }

    //类print
    package jieKou;

    public class Print implements IInterfaceA, IInterfaceB {

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

    }

    //主类E
    package jieKou;

    public class E {

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

    }

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  • 原文地址:https://www.cnblogs.com/nicebaby/p/5901709.html
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