Swift Tutorials

How to create a Two Dimensional Array in Swift

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How to create a Two Dimensional Array in Swift ?

Answer

To create a Two Dimensional Array in Swift, you can use an array of arrays.

✐ Examples

1 Creating a 2D Array of Integers

In this example,

We declare and initialize a 2D array of integers named matrix with dimensions 3x3.
We assign values to the elements of the array.
The outer loop iterates over rows, and the inner loop iterates over columns to fill the array.

Swift Program

var matrix = Array(repeating: Array(repeating: 0, count: 3), count: 3)
for i in 0..<matrix.count {
    for j in 0..<matrix[i].count {
        matrix[i][j] = i + j
    }
}
print(matrix)

Output

[[0, 1, 2], [1, 2, 3], [2, 3, 4]]

2 Creating a 2D Array of Strings

In this example,

We declare and initialize a 2D array of strings named matrix with dimensions 2x2.
We assign values to the elements of the array.
The outer loop iterates over rows, and the inner loop iterates over columns to fill the array.

Swift Program

var matrix = Array(repeating: Array(repeating: "", count: 2), count: 2)
for i in 0..<matrix.count {
    for j in 0..<matrix[i].count {
        matrix[i][j] = "Row \(i + 1), Column \(j + 1)"
    }
}
print(matrix)

Output

[["Row 1, Column 1", "Row 1, Column 2"], ["Row 2, Column 1", "Row 2, Column 2"]]

Summary

In this tutorial, we learned How to create a Two Dimensional Array in Swift language with well detailed examples.

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How to create a Two Dimensional Array in Swift

How to create a Two Dimensional Array in Swift ?

Answer

✐ Examples

1 Creating a 2D Array of Integers

Swift Program

Output

2 Creating a 2D Array of Strings

Swift Program

Output

Summary

More Swift Arrays Tutorials