方法的重载
就是同一个类中的相同方法名的多个方法,但是他们的参数不同,类型不同或者参数个数不同。
(与返回值无关)
package Base_One;public class Base_005 {public static void main(String[] args) {// Main method logic goes hereint result1 = sum(1,2);double result2 = sum(1.2,2.0);int result3 = sum(1,2,3);System.out.println(result1);System.out.println(result2);System.out.println(result3);}public static int sum(int a, int b) {return a + b;}public static double sum(double a, double b) {return a + b;}public static int sum(int a, int b, int c) {return a + b + c;}
}