Generate Random Numbers in Go

package main

import (
    "crypto/rand"
    "fmt"
    "math/big"
    "math/rand/v2"
)

func main() {
    // Generate a single random number between 1 and 100
    randomNumber := rand.IntN(100) + 1
    fmt.Println(randomNumber)  // Example output: 42

    // Generate multiple random numbers
    numbers := make([]int, 10)
    for i := range numbers {
        numbers[i] = rand.IntN(100) + 1
    }
    fmt.Println(numbers)
    // Example output: [23 7 91 45 12 68 3 89 54 31]

    // Generate cryptographically secure random number
    nBig, _ := rand.Int(rand.Reader, big.NewInt(100))
    secureNumber := nBig.Int64() + 1
    fmt.Println(secureNumber)  // Example: 67

    // Random float between 0 and 100
    randomFloat := rand.Float64() * 100
    fmt.Printf("%.2f\n", randomFloat)  // Example: 42.17
}