Golang program to find the largest number among three numbers

Here, we are going to learn how to find the largest number among three numbers in Golang (Go Language)?
Submitted by Nidhi, on February 16, 2021

Problem Solution:

In this program, we will read three integer numbers from the user and find the largest number among the three numbers and print the largest number on the console screen.

Program/Source Code:

The source code to find the largest number among the three numbers is given below. The given program is compiled and executed successfully.

// Golang program to find the largest number among three numbers.

package main
import "fmt"

func main() {
    var num1 int=0
    var num2 int=0
    var num3 int=0
    var large int=0
    
    fmt.Printf("Enter number1: ")
    fmt.Scanf("%d",&num1)
    
    fmt.Printf("Enter number2: ")
    fmt.Scanf("%d",&num2)
    
    fmt.Printf("Enter number3: ")
    fmt.Scanf("%d",&num3)

    if(num1>num2 && num1>num3){
        large=num1
    }else if(num2>num1 && num2>num3){
        large=num2
    }else{
        large=num3
    }
    
    fmt.Printf("Largest number is: %d",large)
}

Output:

Enter number1: 20
Enter number2: 30
Enter number3: 10
Largest number is: 30

Explanation:

In the above program, we declare the package main. The main package is used to tell the Go language compiler that the package must be compiled and produced the executable file. Here, we imported the fmt package that includes the files of package fmt then we can use a function related to the fmt package.

Here, we created the main() function. The main() function is the entry point for the program. In the main() function, we created four variables num1, num2, num3, large, which are initialized with 0. Then we read the values of variables from the user. After that, we checked all numbers and find the largest number among the three numbers and print the largest number on the console screen.

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