編寫一個程序可以實現檢測正負數的奇偶性。

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("輸入數據： " + 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);

}

}

正數運行結果1：

please input a number:

12343252335

輸入數據： 12343252335

12343252335 is odd

the min_value of Long is: -9223372036854775808

the max_value of Long is: 9223372036854775807

負數運行結果2：

please input a number:

-231441341

輸入數據： -231441341

-231441341 is odd

the min_value of Long is: -9223372036854775808

the max_value of Long is: 9223372036854775807

總結

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