C++ Multidimensional Arrays

by Online Tutorials Library July 14, 2022

C++ Multidimensional Arrays

The multidimensional array is also known as rectangular arrays in C++. It can be two dimensional or three dimensional. The data is stored in tabular form (row ∗ column) which is also known as matrix.

C++ Multidimensional Array Example

Let’s see a simple example of multidimensional array in C++ which declares, initializes and traverse two dimensional arrays.

 #include <iostream> using namespace std; int main() {   int test[3][3];  //declaration of 2D array      test[0][0]=5;  //initialization      test[0][1]=10;      test[1][1]=15;     test[1][2]=20;     test[2][0]=30;     test[2][2]=10;     //traversal       for(int i = 0; i < 3; ++i)     {         for(int j = 0; j < 3; ++j)         {             cout<< test[i][j]<<” “;         }         cout<<“n”; //new line at each row      }     return 0; } 

Output:

5 10 0  0 15 20  30 0 10

C++ Multidimensional Array Example: Declaration and initialization at same time

Let’s see a simple example of multidimensional array which initializes array at the time of declaration.

 #include <iostream> using namespace std; int main() {   int test[3][3] =     {         {2, 5, 5},         {4, 0, 3},         {9, 1, 8}  };  //declaration and initialization       //traversal       for(int i = 0; i < 3; ++i)     {         for(int j = 0; j < 3; ++j)         {             cout<< test[i][j]<<” “;         }         cout<<“n”; //new line at each row      }     return 0; } 

Output:”

2 5 5  4 0 3  9 1 8

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