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Accepted
Taras
Asked:2020-10-04 00:45:58 +0000 UTC2020-10-04 00:45:58 +0000 UTC

如何找到数组中所有元素的总和？

  • 772
import java.util.Random;

public class TwoDArrayDz {

    public static void main(String[] args) {
        int m = 5, n = 5;
        int Array[][] = new int [m] [n];
        Random generator = new Random();
        int gn;

        for (int i = 0; i < m; i++) {
            for (int j = 0; j < n; j++) {
                gn = generator.nextInt(100);
                Array [i] [j] = gn;
            }
        }
        for (int i = 0; i < m; i++) {
            for (int j = 0; j < n; j++) {
                System.out.println ("Masiv [" + i + "] [" + j + "] =" + Array [i] [j] + "\t");
            }
            System.out.println();
            int sum = 0;
            for (int s = 0; s < Array.length; s++){
            sum = sum + Array [i] [j];
            }
            System.out.println("Сума = " + sum);
        }
    }

}
java

2 个回答

  1. 在 Java 8 中你可以这样做：

    1. int sum = Arrays.stream(arr).sum();
    2. int sum = IntStream.of(arr).sum();
    • 2
  2. Best Answer
    int sum = 0;
for (int i=0; i<m; i++) {
    for (int j=0; j<n; j++) {
        sum += Array[i][j];
    }
}
    • 1

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