2D Arrays in VB.NET

What is a 2D array in VB.NET?

• A single-dimensional array with only one row and multiple columns

• An array that can only store integers in VB.NET

• A multidimensional array that contains elements organized in rows and columns.

• A data type used to store text in VB.NET

How do you declare a 2D array in VB.NET?

• Dim arrayName(rowSize) As DataType

• Dim arrayName(rowSize, columnSize, DataType)

• Dim arrayName(rowSize, columnSize) As DataType

• Dim arrayName(columnSize, rowSize) As DataType

Explain the syntax for accessing elements in a 2D array in VB.NET.

• arrayName[rowIndex][columnIndex]

• arrayName(columnIndex, rowIndex)

• arrayName[rowIndex][columnIndex]

• arrayName[rowIndex, columnIndex]

How do you iterate through a 2D array in VB.NET using nested loops?

• Accessing each element directly without loops

• Using a single for loop

• By using a while loop

• For example, you can use a nested for loop like this: For i As Integer = 0 To array.GetLength(0) - 1 For j As Integer = 0 To array.GetLength(1) - 1 ' Access array(i, j) here Next Next

Discuss the use of 2D arrays in practical applications with examples in VB.NET.

• 2D arrays in VB.NET are only used for mathematical calculations

• 2D arrays in VB.NET are only used for text processing

• 2D arrays in VB.NET are commonly used in practical applications such as representing grids in games, storing data in a table format, and image processing.

• 2D arrays in VB.NET are never used in practical applications

What are the advantages of using 2D arrays in VB.NET over 1D arrays?

• Storing data in a single line

• Difficult to access specific elements

• Organizing data in rows and columns

• Limited storage capacity