关于掷两个骰子，得到数之和的统计

（Dice Rolling)Write an application to simulate the rolling of two dice. The application should use an object of class Random once to roll the first die and again to roll the second die. The sum of the two values should than be calculated. Each die can show an integer value from 1 to 6, so the sum of the values will vary from 2 to 12, with 7 being the most frequent sum, and 2 and 12 the least frequent. Figure shows the 36 possible combinations of the two dice. Your application should roll the dice 36,000 times. Use a one-dimensional array to tally the number of times each possible su appears.Display the result in tabular format. Determine whether the totals are reasonable(e.g.,there are six ways to roll a 7, so approximately one-sixth of the rolls should be 7).

package array;
import java.util.*;

public class random{
	public static void main(String[] args) {
		int intArray[]= {0,0,0,0,0,0,0,0,0,0,0};
		java.util.Random b=new java.util.Random();//获得随机数b
		for(int i=0;i<36000;i++){
			int a=b.nextInt();
			int c=b.nextInt();//将随机数b复制给a和c
			if(a<0) {
				a=-a;
			}
			//将负的a取正
			a=a%6;
			a=a+1;
		    //获得1~6的随机数a
			if(c<0) {
				c=-c;
			}
			c=c%6;
			c=c+1;
			
			int x=a+c;
			switch (x) {
			case 2:
				intArray[0]++;
				break;
			case 3:
				intArray[1]++;
				break;
			case 4:
				intArray[2]++;
				break;
			case 5:
				intArray[3]++;
				break;
			case 6:
				intArray[4]++;
				break;
			case 7:
				intArray[5]++;
				break;
			case 8:
				intArray[6]++;
				break;
			case 9:
				intArray[7]++;
				break;
			case 10:
				intArray[8]++;
				break;
			case 11:
				intArray[9]++;
				break;
			case 12:
				intArray[10]++;
				break;
			}
		}
		for(int o=0;o<11;o++)
		System.out.println(intArray[o]);
	}
}