Golang program to demonstrate the bitwise Left Shift (<<) operator

Program/Source Code:

The source code to demonstrate the bitwise Left Shift (<<) operator is given below. The given program is compiled and executed successfully.

// Golang program to demonstrate the 
// Left Shift (<<) operator.

package main
import "fmt"

func main() {
    var num int=0
    var res int=0

    fmt.Printf("Enter number: ")
    fmt.Scanf("%d",&num)
    
    res = num << 3
    fmt.Printf("Result: %d",res)
}

Output:

Enter number: 4
Result: 32

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 two variables num and res that are initialized with 0. Then we read the value of the variable num from the user. Then we performed a bitwise left shift operation.

Here, we entered the value 4 for integer variable num, now we will evaluate the below expression,

res = num << 3
res = 4 * (23)
res = 4 * 8
res = 32

After that we printed the value of variable res on the console screen.