C Programming Tutorial

Computer Tutorial

Introduction & History of C Constants & there Types Variables & there Types C Keywords Data Type in C C - Operators First Program in C

Decision Control Statements The if statement Multiple if statement The if-else statement Ternary operator ( ? ) goto statement switch statement

Loops in C The While loop The do-while loop The for loop Nesting of Loops Break & Continue Statement

Array in C » Declaration of an Array » Entering Data into an Array » Reading Data from an Array » Array Elements in Memory » Passing Array Elements to a Function » Passing an Entire Array to a Function » Two-Dimensional Arrays » Initialising a 2-D Array » Reading Data from 2-D Array » Memory Map of 2-D Array » Three-Dimensional Array

Pointer in C Pointer Variables Declaration Pointer Operators

String in C Pointers and Strings String Functions strlen( ) Function strcpy( ) Function strcat( ) Function strcmp( ) Function

Function in C Function Prototypes declaration Call by Value Call by Reference Returning Values Recursion

Structure in C Declaring a Structure Accessing Structure Members Structure Assignments Arrays of Structures Passing Structures to Functions Structure Pointers Uses of Structures

Union in C Difference Between Structure and Union

File Handling in C File Operations Opening a File Reading from a File Trouble in Opening a File Closing the File Writing to a File File Opening Modes File Handling Functions

Additional Tutorials on C

Objective Question on C

Initialising a 2-Dimensional Array

Like one dimensional array, a 2-Dimensional Array are initialise in three ways :
1. Assigning value to array element
2. Assign value to entire array
3. Using Loop

1. Assigning value to array element

We can assign an values to all array element one by one.
marks[1][1] = 79 ;
marks[1][2] = 88 ;
marks[2][1] = 70 ;
marks[2][2] = 56 ;
marks[3][1] = 98 ;
marks[3][2] = 67 ;

2. Assign value to entire array

We can assign entire array at the time of decleration .
int stud[4][2] = {
{ 1234, 56 },
{ 1212, 33 },
{ 1434, 80 },
{ 1312, 78 }
} ;
int stud[4][2] = { 1234, 56, 1212, 33, 1434, 80, 1312, 78 } ;
int arr[ ][3] = { 12, 34, 23, 45, 56, 45 } ;

3. Using Loop

Here is the section of code that places data into an array:
for ( i = 0; i < 4; i ++ )
{

for ( j = 0; j < 2; j ++ )
{
scanf(" %d ", &marks[i][j] ) ;
}

}

It is important to remember that while initializing a 2-D array it is necessary to mention the second (column) dimension, whereas the first dimension (row) is optional.
Thus the following declarations are perfectly acceptable :
int arr[2][3] = { 12, 34, 23, 45, 56, 45 } ;
int arr[ ][3] = { 12, 34, 23, 45, 56, 45 } ;

C Programming Tutorial

Initialising a 2-Dimensional Array