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  1. import java.util.Scanner;
  2.  
  3. public class Main {
  4.  
  5.     public static void main(String[] args) {
  6.         Scanner scanner = new Scanner(System.in);
  7.         int[][] matrix = new int[2][3];
  8.  
  9.         for (int i = 0; i < matrix.length; i++) {
  10.             for (int j = 0; j < matrix[i].length; j++) {
  11.                 matrix[i][j] = (int) (Math.random() * 10);
  12.             }
  13.         }
  14.  
  15.         for (int i = 0; i < matrix.length; i++) {
  16.             for (int j = 0; j < matrix[i].length; j++) {
  17.                 System.out.print(matrix[i][j] + " ");
  18.             }
  19.             System.out.println();
  20.         }
  21.  
  22.         int total = 0;
  23.  
  24.         for (int i = 0; i < matrix.length; i++) {
  25.             for (int j = 0; j < matrix[i].length; j++) {
  26.                 total += matrix[i][j];
  27.             }
  28.         }
  29.  
  30.         System.out.println("Total: " + total);
  31.  
  32.         // Sum of columns
  33.         for (int i = 0; i < 3; i++) {
  34.             int sum = 0;
  35.             for (int j = 0; j < 2; j++) {
  36.                 sum += matrix[j][i];
  37.             }
  38.             System.out.println("Sum at column " + i + ": " + sum);
  39.         }
  40.  
  41.         for (int i = 0; i < 2; i++) {
  42.             int sum = 0;
  43.             for (int j = 0; j < 3; j++) {
  44.                 sum += matrix[i][j];
  45.             }
  46.             System.out.println("Sum of row " + i + ": " + sum);
  47.         }
  48.  
  49.  
  50.     }
  51. }
Success #stdin #stdout 0.15s 60936KB
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stdin
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Standard input is empty
stdout
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8 9 7 
8 3 2 
Total: 37
Sum at column 0: 16
Sum at column 1: 12
Sum at column 2: 9
Sum of row 0: 24
Sum of row 1: 13
https://ideone.com/3w90fI
language:
Java (HotSpot 12)
created:
3 days ago
visibility:
public

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