How to create a Two Dimensional Array in Go - Step by Step Examples

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How to create a Two Dimensional Array in Go ?

Answer

To create a Two Dimensional Array in Go, you can use slices of slices.

✐ Examples

1 Creating a 2D Array of Integers

In this example,

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

Go Program

package main
import (
    "fmt"
)
func main() {
    matrix := make([][]int, 3)
    for i := range matrix {
        matrix[i] = make([]int, 3)
        for j := range matrix[i] {
            matrix[i][j] = i + j
        }
    }
    fmt.Println(matrix)
}

Output

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

2 Creating a 2D Array of Strings

In this example,

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

Go Program

package main
import (
    "fmt"
)
func main() {
    matrix := make([][]string, 2)
    for i := range matrix {
        matrix[i] = make([]string, 2)
        for j := range matrix[i] {
            matrix[i][j] = fmt.Sprintf("Row %d, Column %d", i+1, j+1)
        }
    }
    fmt.Println(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 Go language with well detailed examples.

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How to create a Two Dimensional Array in Go - Step by Step Examples

How to create a Two Dimensional Array in Go ?

Answer

✐ Examples

1 Creating a 2D Array of Integers

Go Program

Output

2 Creating a 2D Array of Strings

Go Program

Output

Summary

More Go Arrays Tutorials