What is an array ?

 

        Arrays 

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Here we’ll study about the arrays also we’ll discussing over various topics such as declaration of arrays, accessing the values of an array, initialisation of an array, etc 

So very first we’ll start with the definition of arrays 

• Array :- an array is a kind of data structure which is used to store multiple values in a single variable instead of declaring separate variables for each values 

Simply we can say that an array is a data structure through which we can store data in memory 

Examples of an arrays are :- 

array of numbers - 3,4,42,45,32

array of cars - “suzuki”, “audi”, “ford”, “volvo”

Above mentioned are some examples of an array 

As above we have seen that the array is a data structure so we need to understand what is data structure 

So simply data structure defines how do we store data in memory 

And array is a data structure through which we can store the data in memory 

Now we’ll see how to declare an array so below with the help of syntax try to understand the declaration of an array 

Data Type [ ] array Name; 

arrayName = newdataType [ n ];

dataType [ ] arrayName = newdataType[ n ];

Hear in the above example the ‘n’ is for the size of the array 

Also once we give the size of an array then we can’t change it’s size 

i.e. :- arr[ 10 ] the ‘10’ is the size given to the array and we cannot change the given size of the array 

Lets understand with the help of an example 

i.e. :- write a program to declear an array 

public class arrayIntro {

public static void main (string[ ]args){

//int [ ]marks = new int [ 5 ]

 }

}

Hopefully the above mentioned information helped you to introduce array to your program learn more about the arrays by practicing and gathering more knowledge about the arrays 

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Thankyou 

BY :- ADARSH GUPTA