C# arrays tutorial for begginers

     Arrays are set of  similar type of values that are stored sequentially.The values of an array can be stored in different ways like,
     
1.One-dimensional        2.Two-dimentional          3.Jagged array.
 
 Array index starts with '0'.That means first item of an array will be stored at o th position and the position of last item of an array will be 'total number of items-1'.

   C# arrays can be declared as fixed length or dynamic. Fixed length of arrays can be stored pre-defined number of items. The size of dynamic arrays increases as we add new items to the array.

One-dimensional array:         <type>[]  <name> = new  <type>[size];

Example:

                     Declaration:     int[]   arr;
                     Initialization:   arr= new  int[5] ;

                    Or  simply:  int[]   arr={list of values};

Two-dimensional array:       <type>[,]  <name> = <type>[rows,cols];

Example:

                    int[,]  arr;
                    arr = new  int[2,3];
     Or simply:
                    int[,]  arr = {list of values};


Jagged array:

       Jagged arrays are also used to store the data in the form of rows and columns .But here the number of columns for each row varies.

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