6-13 编程练习题答案

import java.util.Scanner;

public class Test
{
	public static void main(String[] args)
	{
		Scanner input = new Scanner(System.in);
		System.out.print("Enter some numbers: ");
		int[] numbers = new int[3];
		for(int i = 0; i < 3; i++)
			numbers[i] = input.nextInt();
		System.out.println("The random number is " + getRandom(numbers));
	}

	public static int getRandom(int...numbers)
	{
		boolean flag = true;
		int randomNumber = -1;
		while(flag)
		{
			randomNumber = (int)(Math.random() * 54 + 1);
			flag = false;
			for(int i = 0; i < numbers.length; i++)
			{
				if(randomNumber == numbers[i])
					flag = true;
			}
		}
		return randomNumber;
	}
}