Java统计 m ~ n 中奇数偶数的个数

package practice;

import java.util.Scanner;

public class TargetM_to_N {

	public static void main(String[] args) {

		Scanner sc = new Scanner(System.in);

		System.out.print("请输入起点数：");
		if (sc.hasNextInt()) {
			int beginNum = sc.nextInt();
			System.out.print("请输入终点数：");
			if (sc.hasNextInt()) {
				int endNum = sc.nextInt();
				if (beginNum >= endNum) {
					System.out.println("\n提示：起点数必须小于终点数！");
				} else {
					if (beginNum > 0 && endNum > 0) {
						int sumEven = 0, sumOdd = 0;
						for (int i = beginNum; i <= endNum; i++) {
							if (i % 2 == 0) {
								System.out.println(i + "是偶数！");
								sumEven++;
							} else {
								System.out.println(i + "是奇数！");
								sumOdd++;
							}
						}
						System.out.println("\n提示：奇数共 " + sumEven + " 个，奇数共 " + sumOdd + " 个！");
					} else {
						System.out.println("\n提示：起点数和终点数必须同时大于零！");
					}
				}
			} else {
				System.out.println("\n提示：请输入整数！");
			}
		} else {
			System.out.println("\n提示：请输入整数！");
		}

		sc.close();

	}

}