1  import java.util.Scanner;
 2  public class A {
 3     public static void main(String[] args) {
 4         int[] aa = { -2574, -4010, 8243, 771, 2447, -5197, 2556, 8044, 3314,
 5                  3617, 6065, -2817, 3131, 6318, 2186, -113, 629, -2582, -37,
 6                  -1520, 164, 2055, -5936, 5912, 1717, 5988, 4781, 5757, 892,
 7                  -4394, 8034, 2213, -1080, -2080, 5364, 106, 2657, 566, 3940,
 8                  -5116, 4583, 1806, 6555, 2621, -7197, 528, 1626, 18, 1049,
 9                  6243, 3198, 4397, -1325, 9087, 936, -6291, 662, -178, 135,
10                  -3473, -2385, -165, 1713, -7949, -4234, 1138, 2212, 104, 6968,
11                  -3632, 3801, 1137, -1296, -1215, 4272, 6223, -5922, -7723,
12                  7044, -2938, -8180, 1356, 1159, -4022, -3713, 1158, -8715,
13                  -4081, -2541, -2555, -2284, 461, 940, 6604, -3631, 3802, -2037,
14                  -4354, -1213, 767 };
15          int sum = 0;
16          Scanner a = new Scanner(System.in);
17          System.out.println("startsum(<=100)：");
18          int start = a.nextInt();
19          System.out.println("endsum(<=100)：");
20          int end = a.nextInt();
21          System.out.println("startsum" + start + "endsum" + end + "sum:");
22  
23          for (int i = start - 1; i < end; i++)
24          sum += aa[i];
25          System.out.println(aa[start - 1] + "+...+" + aa[end - 1] + "=" + sum);
26  
27     }
28  }

1  import java.util.Scanner;
 2  public class  B{
 3       public static void main(String[] args) {
 4          int[][] b = {
 5                { -2574, -4010, 8243, 771, 2447, -5197, 2556, 8044, 3314, 3617,
 6                  6065, -2817, 3131, 6318, 2186, -113, 629, -2582, -37,
 7                  -1520, 164, 2055, -5936, 5912, 1717, 5988, 4781, 5757,
 8                  892, -4394, 8034, 2213, -1080, -2080, 5364, 106, 2657,
 9                  566, 3940, -5116, 4583, 1806, 6555, 2621, -7197, 528,
10                  1626, 18, 1049, 6243, 3198, 4397, -1325, 9087, 936,
11                  -6291, 662, -178, 135, -3473, -2385, -165, 1713, -7949,
12                  -4234, 1138, 2212, 104, 6968, -3632, 3801, 1137, -1296,
13                  -1215, 4272, 6223, -5922, -7723, 7044, -2938, -8180,
14                  1356, 1159, -4022, -3713, 1158, -8715, -4081, -2541,
15                  -2555, -2284, 461, 940, 6604, -3631, 3802, -2037,
16                  -4354, -1213, 767 },
17                 { 2740, -4182, -5632, -2966, -1953, 567, -8570, 1046, 2211,
18                   1572, -2503, -1899, 3183, -6187, 3330, 3492, -464,-602,
19                   -2104, 316, 8136, 470, 50, 466, -1424, 5809, 2131,
20                   6418, -3018, 6002, -8379, 1433, 1144, 2124, 1624, 
21                   -5518, 5872, 870, -5175, -3961, -427, -6284, 2850, 481,
22                   6175, 141, -766, -1897, -748, -4248, 366, 4823, 3003,
23                   1778, 3256, 2182, 2253, 5076, 5540, -2650, 2451, -1875,
24                   5482, -6881, -329, -969, -8032, -2093, 612, 1524,
25                   -5492, 5758, -7401, -5039, 3241, 6338, 3581, 4321,
26                   -1072, 4942, 2131, 210, -7045, -7514, 7450, -1142,
27                   -2666, -4485, -639, 2121, -5298, -3805, -1686, -2520,
28                   -1680, 2321, -4617, -1961, 2076, 7309 } };
29         int sum=0;
30         Scanner bb = new Scanner(System.in);
31         System.out.println("startline:");
32         int startI = bb.nextInt();
33         System.out.println("endline:");
34         int endI = bb.nextInt();
35         System.out.println("startline:");
36         int startJ = bb.nextInt();
37         System.out.println("endline:");
38         int endJ = bb.nextInt();
39         System.out.println("startline" + startI + "endline" + startJ + "startline" + endI + "endline"+ endJ + "和为：");
40           for (int i = startI - 1; i < endI; i++)
41         {for (int j = startJ - 1; j < endJ ; j++)
42              {
43                 sum += b[i][j];
44             }
45          }
46        System.out.println(b[startI - 1][startJ - 1] + "+...+"
47                 + b[endI - 1][endJ - 1] + "=" + sum);
48     }
49  }