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Add advantages and disadvantages of an array (#18367)

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palash4u
2018-10-14 00:20:52 +05:30
committed by Heather Kusmierz
parent 72c550bb8a
commit 7a976c5b0d
1 changed files with 12 additions and 4 deletions
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client/src/pages/guide/english/csharp/array/index.md
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@ -6,7 +6,7 @@ title: Arrays
An array is used to store a collection of data of the same type. This can be used as a single variable that holds multiple values, or a collection of variables. An array is used to store a collection of data of the same type. This can be used as a single variable that holds multiple values, or a collection of variables.
# Rules of Arrays ## Rules of Arrays
Arrays start from zero. The first element of an array is 0, the second element is 1, the third element 2, and so on. Arrays start from zero. The first element of an array is 0, the second element is 1, the third element 2, and so on.
@ -14,18 +14,18 @@ Arrays must be of the same data type. You can use any data type in an array (e.g
A new Array must first be declared and initialised before it can be called and accessed. A new Array must first be declared and initialised before it can be called and accessed.
# Declaring an Array ## Declaring an Array
Use the following format for declaring arrays: Use the following format for declaring arrays:
`dataType [] nameOfArray;` `dataType [] nameOfArray;`
# Initialising an array ## Initializing an array
Use the following format for initialising an array. This method also declares the array and states how many values are to be stored into the array. Use the following format for initialising an array. This method also declares the array and states how many values are to be stored into the array.
`dataType [] nameOfArray = new nameOfArray[numberOfElements];` `dataType [] nameOfArray = new nameOfArray[numberOfElements];`
# Assigning values to an array ## Assigning values to an array
You can assign a value into an element directly by using the format below: You can assign a value into an element directly by using the format below:
@ -49,3 +49,11 @@ You can store an array directly into another array by using the format below:
`int [] nameOfArray = new nameOfArray[4] {2,9,56,1280};` `int [] nameOfArray = new nameOfArray[4] {2,9,56,1280};`
`int [] nameOfSecondArray = nameOfArray;` `int [] nameOfSecondArray = nameOfArray;`
## Advantages
* Can be easily accessed in a random manner
* Can be easily manipulated
## Disadvantages
* The only disadvantage is that the size of an array is fixed. (Hence, a list can be used in case of a dynamic sizing.)