overload.java

来自「实验 1 对象的创建和使用 ( l ）理解类的定义； ( 2 ）掌握对象的」· Java 代码 · 共 50 行

//Overload.java
class Overload {
	int m, n;

	Overload() {
		m = 0;
		n = 0;
	}

	Overload(int a, int b) {
		m=a;// 代码1 //初始化变量m
		n=b;// 代码2 //初始化变量n
	}

	int add() {
		System.out.println("无参加法" + m + "+" + n + "=" + (m + n));
		return m + n;
	}

	int add(int a, int b) {
		System.out.println("整型加法" + a + "+" + b + "=" + (a + b));
		return a + b;
	}
/*	double add(int a,int b){
		System.out.println("整型加法但返回实型值"+a+"+"b+"="+(a+b));
		return (double) (a+b);
	}*/

	double add(double a, double b) {
		System.out.println("实型加法" + a + "+" + b + "=" + (a + b));
		return a + b;
	}

	double add(int a, int b, double c) {
		System.out.println("混合加法" + a + "+" + b + "+" + c + "=" + (a + b + c));
		return (a+b+c);// 代码3 //返回加法运算的结果
	}

	public static void main(String[] args) {
		int ix, iy;
		double dx, dy;
		;// 代码4 //声明一个Overload对象ov并初始化
		Overload ov=new Overload(1,2);
		ix = ov.add();
		iy = ov.add(3, 6);
		ov.add(2.1,5.3);//代码5    //调用实型加法函数参数为2.1, 5.3
		dy = ov.add(3, 6, 2.2);
	}
}