Array must be declared explicitly with keyword "As". Local arrays are declared in a procedure using Dim or Static.
Module arrays are declared in the general declarations using keyword Dim or Private.
ARRAY VISUAL BASIC CODE
Arrays may be declared as Public (in a code module), module or local. The programmer specifies the array type and the number of elements required by the array so that the compiler may reserve the appropriate amount of memory. Declaring arraysĪrrays occupy space in memory. The individual elements of an array are all of the same data type. Arrays can de declare of any of the basic data types including variant, user-defined types and object variables. Each index number in an array is allocated individual memory space and therefore users must evade declaring arrays of larger size than required. The Individual elements of an array are identified using an index.Īrrays have upper and lower bounds and the elements have to lie within those bounds. Changes made to one element of an array don't affect the other elements. Each element of an array is identified by a unique index number.
This is how we can use the required methods of Array class in our applications to implement required functionality.In VB6 an array is a variable that contains a finite number of elements that have a common name and data type.
If you observe the above result, we sorted the elements of an array and changed the order of array elements using Array class based on our requirements. When we execute the above visual basic program, we will get the result as shown below. If you observe the above example, we are sorting and changing the order of array elements using Sort and Reverse methods of an Array class. WriteLine( "-Elements After Reverse-")Ĭonsole. WriteLine( "-Elements After Sort-")Ĭonsole. WriteLine( "-Initial Array Elements-")Ĭonsole.
' Declaring and Initializing an array with size of 5ĭim array As Integer() = New Integer(4) Ĭonsole. In visual basic, Arrays can be declared by specifying the type of elements followed by the brackets () like as shown below. If you observe the above diagram, we are storing the values in an array starting from index 0 and it will continue to store the values based on the defined number of elements. Suppose if we have an array with n elements, then it will start storing the elements from index 0 to n-1.įollowing is the pictorial representation of storing the multiple values of the same type in a visual basic array data structure. In case, if we want to hold more than one value of the same data type, then the arrays came into the picture in visual basic to solve this problem.Īn array can start storing the values from index 0. In the previous chapter, we learned about variables in visual basic, which will help us to hold a single value like Dim id As Integer =10. In visual basic, Arrays are useful to store multiple elements of the same data type at contiguous memory locations and arrays will allow us to store the fixed number of elements sequentially based on the predefined number of items.