JAVA基础：方法案例

方法设计技巧：

package com.itheima.Method;

public class Method3 {
    public static void main(String[] args) {
        System.out.println(sum(10));

        pan(5);
    }
    public static int sum(int n){
        int sum=0;
        for (int i = 1; i <= n; i++) {
            sum +=i;
        }
        return sum;
    }
    public static void pan(int a){
         String b=a % 2 == 0 ? "偶数" : "奇数";
        System.out.println(b);
    }
}