判断一个数的奇偶性

时间:2022-08-23 19:38:50
编写一个程序可以实现检测正负数的奇偶性。
package com.liaojianya.chapter1;

import java.util.Scanner;

/**
* This program demonstrates the way of judge number is odd or even
* @author LIAO JIANYA
*
*/
public class OddEven
{
@SuppressWarnings("resource")
public static void main(String[] args)
{

Scanner scan = new Scanner(System.in);
System.out.println("please input a number: ");
long read = scan.nextLong();
System.out.println("输入数据: " + read);

if(read % 2 == 1 || read % 2 == -1)
{
System.out.println(read + " is odd");
}
else
{
System.out.println(read + " is even");
}

System.out.println("the min_value of Long is: " + Long.MIN_VALUE);
System.out.println("the max_value of Long is: " + Long.MAX_VALUE);
}
}

  正数运行结果1:

please input a number: 
12343252335
输入数据: 12343252335
12343252335 is odd
the min_value of Long is: -9223372036854775808
the max_value of Long is: 9223372036854775807

  负数运行结果2:

please input a number: 
-231441341
输入数据: -231441341
-231441341 is odd
the min_value of Long is: -9223372036854775808
the max_value of Long is: 9223372036854775807