2.Arrays

Arrays :

An Array is collection of similar data type of elements.

ex : int arr[10];

       int ch[10];

 Syntax :

int arr[size];

Advantages of Arrays :

1.we can easy traverse the specified number location with the help of subscript operator(nothing but random access is possible).

2.ex : int arr[5] = {11,22,33,44,55};

Suppose we want to access  the third element in an array ,simply we can call a[2]  

3.Arrays are very helpful, when we handle the sequences of same kind of data.

Disadvantages :

1.It can store only similar type of elements.

ex : int arr[10];
       char ch[20];

2.Array size we can't increment or decrement at runtime. so wastage of memory may happens.

ex :  char ch[50] = {"hai how r u"};

here only 11 bytes is used,remaining 39 bytes should be waste.  



 

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