Math_2023_09_17.java

package homework;

import util.StringUtil;

/**
 * 八位数:  2 _ _ _ _ _ _ 5
 * 每相邻三个数字和为11
 *
 * @author ZengWenFeng
 * @email [email protected]
 * @mobile 13805029595
 * @date 2023.09.17
 */
public class Math_2023_09_17
{	
	public static boolean isOk(String str, int sum)
	{
		int s = 0;
		
//		System.out.println(str.substring(0, 1));
//		System.out.println(str.substring(1, 2));
//		System.out.println(str.substring(2, 3));
		
		s += Integer.parseInt(str.substring(0, 1));
		s += Integer.parseInt(str.substring(1, 2));
		s += Integer.parseInt(str.substring(2, 3));
		
		return s == sum;
		
	}
	
	public static void test()
	{
		String curNum;
		String temp;
		for (int i = 0; i < 1000000; i++)
		{
//			System.out.println();
			
			curNum = Integer.toString(i);
			curNum = "2" + StringUtil.getZeroStr(6 - curNum.length()) + curNum + "5";
			
			temp = curNum.substring(0, 3);
//			System.out.print(" " + temp);
			if (!isOk(temp, 11))
			{
//				System.out.println();
				continue;
			}
			
			temp = curNum.substring(1, 4);
//			System.out.print(" " + temp);
			if (!isOk(temp, 11))
			{
//				System.out.println();
				continue;
			}
			
			temp = curNum.substring(2, 5);
//			System.out.print(" " + temp);
			if (!isOk(temp, 11))
			{
//				System.out.println();
				continue;
			}
			
			temp = curNum.substring(3, 6);
//			System.out.print(" " + temp);
			if (!isOk(temp, 11))
			{
//				System.out.println();
				continue;
			}
			
			temp = curNum.substring(4, 7);
//			System.out.print(" " + temp);
			if (!isOk(temp, 11))
			{
//				System.out.println();
				continue;
			}
			
			temp = curNum.substring(5, 8);
//			System.out.print(" " + temp);
			if (!isOk(temp, 11))
			{
//				System.out.println();
				continue;
			}
			
			System.out.println(curNum);//25425425
			
		}
	}
	
	public static void main(String[] args)
	{
//		boolean b = isOk("254", 11);
//		System.out.println(b);
		
		
//		String curNum = "12345678";
//		String temp = curNum.substring(0, 3);
//		System.out.print(" " + temp);
//		temp = curNum.substring(1, 4);
//		System.out.print(" " + temp);
//		temp = curNum.substring(2, 5);
//		System.out.print(" " + temp);
//		temp = curNum.substring(3, 6);
//		System.out.print(" " + temp);
//		temp = curNum.substring(4, 7);
//		System.out.print(" " + temp);
//		temp = curNum.substring(5, 8);
//		System.out.print(" " + temp);
		
		test();
	}
}