C# Arrays - W3Schools

Create an Array ... Arrays are used to store multiple values in a single variable, instead of declaring separate variables for each value. To declare an array, ... 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Todeclareanarray,definethevariabletypewithsquarebrackets: string[]cars; Wehavenowdeclaredavariablethatholdsanarrayofstrings. Toinsertvaluestoit,wecanuseanarrayliteral-placethevaluesinacomma-separatedlist,insidecurlybraces: string[]cars={"Volvo","BMW","Ford","Mazda"}; Tocreateanarrayofintegers,youcouldwrite: int[]myNum={10,20,30,40}; AccesstheElementsofanArray Youaccessanarrayelementbyreferringtotheindexnumber. Thisstatementaccessesthevalueofthefirstelementincars: Example string[]cars={"Volvo","BMW","Ford","Mazda"}; Console.WriteLine(cars[0]); //OutputsVolvo TryitYourself» Note:Arrayindexesstartwith0:[0]isthefirstelement.[1]isthesecond element,etc. ChangeanArrayElement Tochangethevalueofaspecificelement,refertotheindexnumber: Example cars[0]="Opel"; Example string[]cars={"Volvo","BMW","Ford","Mazda"}; cars[0]="Opel"; Console.WriteLine(cars[0]); //NowoutputsOpelinsteadofVolvo TryitYourself» ArrayLength Tofindouthowmanyelementsanarrayhas,usethe Lengthproperty: Example string[]cars={"Volvo","BMW","Ford","Mazda"}; Console.WriteLine(cars.Length); //Outputs4 TryitYourself» LoopThroughanArray Youcanloopthroughthearrayelementswiththeforloop,andusethe Length propertytospecifyhowmanytimestheloopshouldrun. Thefollowingexampleoutputsallelementsinthecars array: Example string[]cars={"Volvo","BMW","Ford","Mazda"}; for(inti=0;i