案例：奇偶数

import java.util.Scanner;
public class HelloWorld{
    
    
    public static void main (String[] args){
    
    
        Scanner sc = new Scanner(System.in);
        int number = sc.nextInt();
        if(number %2 == 0){
    
    
            System.out.println(number+"为偶数");
        }
            else{
    
    
                System.out.println(number+"为奇数");
            }

   }
}