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How to create a Set of integers in Go

How to create a Set of integers in Go ?

Answer

To create a set of integers in Go, you can use a map with integer keys.


✐ Examples

1 Create a Set of Integers using Map

In this example,

  1. We define a map with integer keys to represent the set of integers.
  2. We use the keys of the map to store unique integers.

Go Program

package main

import "fmt"

func main() {
    intSet := make(map[int]struct{})
    intSet[1] = struct{}{}
    intSet[2] = struct{}{}
    intSet[3] = struct{}{}
    intSet[4] = struct{}{}
    intSet[5] = struct{}{}
    fmt.Println("Set of integers:", intSet)
}

Output

Set of integers: map[1:{} 2:{} 3:{} 4:{} 5:{}]

2 Create a Set of Integers using Slice

In this example,

  1. We define a slice of integers to represent the set of integers.
  2. We use a loop to add unique integers to the slice.

Go Program

package main

import "fmt"

func main() {
    var intSet []int
    for i := 1; i <= 5; i++ {
        intSet = append(intSet, i)
    }
    fmt.Println("Set of integers:", intSet)
}

Output

Set of integers: [1 2 3 4 5]

Summary

In this tutorial, we learned How to create a Set of integers in Go language with well detailed examples.


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