Note that if these are arrays were not initialised, integer array elements would be assigned to 0 and false to boolean arrays.Īn interesting function which has been just introduced in the code above is the Length function. If we want to intialise 2 entire integer and boolean arrays of size 20 to 1 and true respectively, we do it like this: Varīegin For i := 1 to Length(myIntArray) do Just like ordinary variables, arrays can be initialised with any value you want, otherwise they will be assigned with their default value.
Reading a value from an array is done as follows: Var You just take the array in subject, specify the index of the variable of the array and assign it a value relevant to the data type of the array itself. To assign values to a particular integer of an array, we do it like this: myArray := 10 In the example above, I have declared 20 integers and I should be able to access each and one of them and here is how I do it.
#Turbo pascal code how to#
You will now learn how to assign data to arrays and read data from arrays. They are used to store typed data just like the ordinary variables. This size depends on your program requirements.Īrrays are used just like ordinary variables. In the above example, the array stores up to 20 integers however I may have used 30 integers or more. Now we will be using the array data structure and here is how it is declared:Īn array data structure defines the size of the array and the data type that it will use for storing data.
Up until now, we have used single variables only as a tool to store data. An array is said to be a static data structure because, once declared, its original size that is specified by the programmer will remain the same throughout the whole program and cannot be changed. It is just like a small fixed number of boxes linked together one after the other storing things that are related to each other. An array is a highly useful data structure that stores variable data having the samedata type.
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