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- The two-dimensional arrays in C are used to represent the elements of an array in the form of rows and columns. And in the two-dimensional array, we require to refer 2 subscript operators which indicate the row and column. While the main memory of arrays is rows and sub-memory is columns. Syntax: Datatype ArrayName SIZE SIZE.
- An Array having more than one dimension is called Multi Dimensional array in C. In our previous article, we discussed Two Dimensional Array, which is the simplest form of C Multi Dimensional Array. In C Programming Language, by placing n number of brackets , we can declare n-dimensional array where n is dimension number.
Two Dimensional Array Initialization In C
Two Dimensional Array in C The Two Dimensional Array in C language is nothing but an Array of Arrays. If the data is linear, we can use the One Dimensional Array. However, to work with multi-level data, we have to use the Multi-Dimensional Array.
C Array is a collection of variables belongings to the same data type. You can store group of data of same data type in an array.
- Array might be belonging to any of the data types
- Array size must be a constant value.
- Always, Contiguous (adjacent) memory locations are used to store array elements in memory.
- It is a best practice to initialize an array to zero or null while declaring, if we don't assign any values to array.
Example for C Arrays:
- int a[10]; // integer array
- char b[10]; // character array i.e. string
Types of C arrays:
There are 2 types of C arrays. They are,
- One dimensional array
- Multi dimensional array
- Two dimensional array
- Three dimensional array
- four dimensional array etc…
1. One dimensional array in C:
Syntax : readonly='>#include int main() { int i; int arr[5] = {10,20,30,40,50}; // declaring and Initializing array in C //To initialize all array elements to 0, use int arr[5]={0}; /* Above array can be initialized as below also arr[0] = 10; arr[1] = 20; arr[2] = 30; arr[3] = 40; arr[4] = 50; */ for (i=0;i<5;i++) { // Accessing each variable printf('value of arr[%d] is %d n', i, arr[i]); } } Adobe cs master collection torrent.
2 4 6 8 10 12 14 16 18 20 22 | { intarr[5]={10,20,30,40,50}; // declaring and Initializing array in C //To initialize all array elements to 0, use int arr[5]={0}; arr[0] = 10; arr[2] = 30; arr[4] = 50; */ for(i=0;i<5;i++) // Accessing each variable } } |
Output:
value of arr[1] is 20 value of arr[3] is 40 |
2. Two dimensional array in C:
- Two dimensional array is nothing but array of array.
- syntax : data_type array_name[num_of_rows][num_of_column];
Array declaration, initialization and accessing | |
Array declaration syntax: data_type arr_name [num_of_rows][num_of_column];Array initialization syntax: data_type arr_name[2][2] = {{0,0},{0,1},{1,0},{1,1}};Array accessing syntax: arr_name[index]; | Integer array example: int arr[2][2]; arr [0] [0] = 1; |
Example program for two dimensional array in C:
2 4 6 8 10 12 14 16 18 20 | { // declaring and Initializing array /* Above array can be initialized as below also arr[0][1] = 20; arr[1][1] = 40; */ { { printf('value of arr[%d] [%d] : %dn',i,j,arr[i][j]); } |
OUTPUT:
value of arr[0] [0] is 10 value of arr[1] [0] is 30 |
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Two Dimensional Char Array Initialization In C
Types of Arrays in C++: C++ allows us to create multidimensional arrays. There are different types of arrays in C++. They are as follows:
- One Dimensional Array
- Two dimensional Array
- Multidimensional Array
Contents
One Dimensional Array in C++
A one-dimensional array in C++ can be defined as a group of elements having the same data type and the same name. And the individual elements are referred to using the common name and index of the elements.
Declaring One Dimensional Array in C++
The general form for declaring a one-dimensional array is given below:
Syntax: data_type array_name[array_size];
Example:
- One dimensional array
- Multi dimensional array
- Two dimensional array
- Three dimensional array
- four dimensional array etc…
1. One dimensional array in C:
Syntax : readonly='>#include int main() { int i; int arr[5] = {10,20,30,40,50}; // declaring and Initializing array in C //To initialize all array elements to 0, use int arr[5]={0}; /* Above array can be initialized as below also arr[0] = 10; arr[1] = 20; arr[2] = 30; arr[3] = 40; arr[4] = 50; */ for (i=0;i<5;i++) { // Accessing each variable printf('value of arr[%d] is %d n', i, arr[i]); } } Adobe cs master collection torrent.
2 4 6 8 10 12 14 16 18 20 22 | { intarr[5]={10,20,30,40,50}; // declaring and Initializing array in C //To initialize all array elements to 0, use int arr[5]={0}; arr[0] = 10; arr[2] = 30; arr[4] = 50; */ for(i=0;i<5;i++) // Accessing each variable } } |
Output:
value of arr[1] is 20 value of arr[3] is 40 |
2. Two dimensional array in C:
- Two dimensional array is nothing but array of array.
- syntax : data_type array_name[num_of_rows][num_of_column];
Array declaration, initialization and accessing | |
Array declaration syntax: data_type arr_name [num_of_rows][num_of_column];Array initialization syntax: data_type arr_name[2][2] = {{0,0},{0,1},{1,0},{1,1}};Array accessing syntax: arr_name[index]; | Integer array example: int arr[2][2]; arr [0] [0] = 1; |
Example program for two dimensional array in C:
2 4 6 8 10 12 14 16 18 20 | { // declaring and Initializing array /* Above array can be initialized as below also arr[0][1] = 20; arr[1][1] = 40; */ { { printf('value of arr[%d] [%d] : %dn',i,j,arr[i][j]); } |
OUTPUT:
value of arr[0] [0] is 10 value of arr[1] [0] is 30 |
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Two Dimensional Char Array Initialization In C
Types of Arrays in C++: C++ allows us to create multidimensional arrays. There are different types of arrays in C++. They are as follows:
- One Dimensional Array
- Two dimensional Array
- Multidimensional Array
Contents
One Dimensional Array in C++
A one-dimensional array in C++ can be defined as a group of elements having the same data type and the same name. And the individual elements are referred to using the common name and index of the elements.
Declaring One Dimensional Array in C++
The general form for declaring a one-dimensional array is given below:
Syntax: data_type array_name[array_size];
Example:
Initializing One Dimensional Array in C++
The general form for initializing one-dimensional array is given below:
Syntax: data_type array_name[array_size] = {comma_separated_element_list};
Example:
Example for One-Dimensional Array in C++
Output:
Enter 10 array elements:
1
2
3
4
5
6
7
8
9
10
The array elements are :
1 2 3 4 5 6 7 8 9 10
Sum of all elememts is: 55
And average is : 5
Example 2
Output:
Two Dimensional String Array Initialization In C
arr[0] = 1
arr[1] = 2
arr[2] = 3
arr[3] = 4
arr[4] = 5
Two Dimensional Arrays in C++
The two-dimensional arrays in C++ are used to represent the elements of an array in the form of rows and columns. And in the two-dimensional array, we require to refer 2 subscript operators which indicate the row and column. While the main memory of arrays is rows and sub-memory is columns.
Syntax: Datatype ArrayName[SIZE][SIZE];
Initialization of Two Dimensional Arrays
There are two different ways in which two-dimensional arrays can be initialized.
- first method
Example:
- Second method
Example:
Example for two – dimensional arrays in C++
Output:
Element at x[0][0]: 0
Element at x[0][1]: 1
Element at x[1][0]: 2
Element at x[1][1]: 3
Element at x[2][0]: 4
Element at x[2][1]: 5
Three dimensional Array (or) Multi-dimensional Array in C++
The three-dimensional arrays are same as of two-dimensional arrays. The main difference is we have to use three loops instead of two loops for additional one dimension in three-dimensional arrays.
C# Two Dimensional String Array
Example:
Output:
Element at x[0][0][0] = 0
Element at x[0][0][1] = 1
Element at x[0][1][0] = 2
Element at x[0][1][1] = 3
Element at x[0][2][0] = 4
Element at x[0][2][1] = 5
Element at x[1][0][0] = 6
Element at x[1][0][1] = 7
Element at x[1][1][0] = 8
Element at x[1][1][1] = 9
Element at x[1][2][0] = 10
Element at x[1][2][1] = 11