有一对兔子，从出生后第3个月起每个月都生一对兔子，小兔子长到第三个月后

package procedure;

import java.util.Scanner;

public class Rabbit {

	private static Scanner scanner;

	public static void main(String[] args) {
		scanner = new Scanner(System.in);
		System.out.println("兔子繁衍第几代：");
		int n = scanner.nextInt();
		int rabbit1 = 1;
		int rabbit2 = 1;
		System.out.println("第1代兔子数为：" + rabbit1);
		System.out.println("第2代兔子数为：" + rabbit2);
		int i;
		for (i = 1; i < n / 2 + 1; i++) {
			rabbit1 = rabbit1 + rabbit2;
			rabbit2 = rabbit2 + rabbit1;
			System.out.println("第" + (2 * i + 1) + "代兔子数为：" + rabbit1);
			System.out.println("第" + (2 * i + 2) + "代兔子数为：" + rabbit2);
		}

	}

}