day10-接口interface-常量的使用
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day10/src/com/inmind/interface_constant05/Demo05.java
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day10/src/com/inmind/interface_constant05/Demo05.java
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package com.inmind.interface_constant05;
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public class Demo05 {
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public static void main(String[] args) {
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//调用接口的常量
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System.out.println(MyInterfaceConstant.age);
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System.out.println(MyInterfaceConstant.name);
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}
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}
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package com.inmind.interface_constant05;
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/*
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接口中的常量定义和使用方式:
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接口中是可以定义“成员变量”,在接口中的“成员变量”其实就是常量,编译器会自动加上一些内容
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【public static final】 int i = 10;
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final:最终,被它修饰的内容不能被更改
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接口常量的作用:为接口的行为规范提供配套的固定值
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接口名.常量名来调用
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*/
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public interface MyInterfaceConstant {
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public static final int age = 10;
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String name = "hello";//自动加上【public static final】
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void method();
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}
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