3×3 matrix

Core exercise

Write construireMatrice() that returns an int[3][3] containing the numbers from 1 to 9 in order, and afficherMatrice(int[][] matrice) that prints it row by row.

A workshop goes here: you write and run code in it. It requires JavaScript.

Starting code

Exercices.java

public class Exercices {

    public static void main(String[] args) {
        afficherMatrice(construireMatrice());
    }

    public static int[][] construireMatrice() {
        // TODO : remplir une matrice 3x3 avec 1 a 9
        return new int[3][3];
    }

    public static void afficherMatrice(int[][] matrice) {
        // TODO : une ligne par ligne de la matrice
    }
}

The core exercise is validated in the workshop, which requires JavaScript.

Hint 1

Two nested loops. A counter incremented at each filled cell saves you from computing i * 3 + j + 1.