方法的重载
方法可以重名，但需要确保参数类型不一样
示例：
package com.guo.method;public class Demo02 {public static void main(String[] args) {double max = max(3,3);System.out.println(max);// int max = max(3,3);// System.out.println(max);}//比较大小doublepublic static double max(double number1,double number2){int result;if (number1==number2){System.out.println("number1=number2");return 0; //终止方法}if (number1>number2){result = (int)number1;}else {result = (int)number2;}return result;}//比较大小intpublic static int max(int number1,int number2){int result;if (number1==number2){System.out.println("number1=number2");return 0; //终止方法}if (number1>number2){result = number1;}else {result = number2;}return result;}
}