Multiply integer number with 3.5

Here given code implementation process.

// C Program
// Multiply integer number with 3.5
#include <stdio.h>

void multiplyBy3Dot5(int num)
{
   printf("\n Given Number : %d",num);
   // Normal way
   int a = 3.5 * num;
   // By Using bitwise
   int b = (num << 1) + (num >> 1) + num;

   if(b < 0 && (-num) % 2 != 0)
   {
        // Handle negative odd number
        b+=1;
   }
   printf("\n Result a : %d",a);
   printf("\n Result b : %d",b);

}
int main()
{
    // Test A
    // num = 6
    // (6 << 1)  = 12
    // (6 >> 1)  = 3
    //  num      = 6
    // --------------
    // Result    = 21
    multiplyBy3Dot5(6);
    // Test B
    // num = 31
    // (31 << 1)  =  62
    // (31 >> 1)  =  15
    //  num       =  31
    // ---------------
    // Result     = 108
    multiplyBy3Dot5(31);


    // Test C
    // num = -5
    // (-5 << 1)  =  -10
    // (-5 >> 1)  =  -3
    //  num       =  -5
    // ---------------
    //             (-18 + 1)
    // Result   = -17
    multiplyBy3Dot5(-5);


    return 0;
}

Output

 Given Number : 6
 Result a : 21
 Result b : 21
 Given Number : 31
 Result a : 108
 Result b : 108
 Given Number : -5
 Result a : -17
 Result b : -17
// Java program for
// Multiply integer number with 3.5
public class Multiply
{
    public void multiplyBy3Dot5(int num)
    {
        System.out.print("\n Given Number : " + num );
        // Normal way
        int a = (int)(3.5 * num);
        // By Using bitwise
        int b = (num << 1) + (num >> 1) + num;
        if (b < 0 && (-num) % 2 != 0)
        {
            // Handle negative odd number
            b += 1;
        }
        System.out.print("\n Result a : " + a );
        System.out.print("\n Result b : " + b );
    }
    public static void main(String[] args)
    {
        Multiply task = new Multiply();
        // Test A
        // num = 6
        // (6 << 1)  = 12
        // (6 >> 1)  = 3
        //  num      = 6
        // --------------
        // Result    = 21
        task.multiplyBy3Dot5(6);
        // Test B
        // num = 31
        // (31 << 1)  =  62
        // (31 >> 1)  =  15
        //  num       =  31
        // ---------------
        // Result     = 108
        task.multiplyBy3Dot5(31);
        // Test C
        // num = -5
        // (-5 << 1)  =  -10
        // (-5 >> 1)  =  -3
        //  num       =  -5
        // ---------------
        //             (-18 + 1)
        // Result   = -17
        task.multiplyBy3Dot5(-5);
    }
}

Output

 Given Number : 6
 Result a : 21
 Result b : 21
 Given Number : 31
 Result a : 108
 Result b : 108
 Given Number : -5
 Result a : -17
 Result b : -17
// Include header file
#include <iostream>

using namespace std;
// C++ program for
// Multiply integer number with 3.5
class Multiply
{
	public: void multiplyBy3Dot5(int num)
	{
		cout << "\n Given Number : " << num;
		// Normal way
		int a = (int)(3.5 *num);
		// By Using bitwise
		int b = (num << 1) + (num >> 1) + num;
		if (b < 0 && (-num) % 2 != 0)
		{
			// Handle negative odd number
			b += 1;
		}
		cout << "\n Result a : " << a;
		cout << "\n Result b : " << b;
	}
};
int main()
{
	Multiply *task = new Multiply();
	// Test A
	// num = 6
	// (6 << 1)  = 12
	// (6 >> 1)  = 3
	//  num      = 6
	// --------------
	// Result    = 21
	task->multiplyBy3Dot5(6);
	// Test B
	// num = 31
	// (31 << 1)  =  62
	// (31 >> 1)  =  15
	//  num       =  31
	// ---------------
	// Result     = 108
	task->multiplyBy3Dot5(31);
	// Test C
	// num = -5
	// (-5 << 1)  =  -10
	// (-5 >> 1)  =  -3
	//  num       =  -5
	// ---------------
	//             (-18 + 1)
	// Result   = -17
	task->multiplyBy3Dot5(-5);
	return 0;
}

Output

 Given Number : 6
 Result a : 21
 Result b : 21
 Given Number : 31
 Result a : 108
 Result b : 108
 Given Number : -5
 Result a : -17
 Result b : -17
// Include namespace system
using System;
// Csharp program for
// Multiply integer number with 3.5
public class Multiply
{
	public void multiplyBy3Dot5(int num)
	{
		Console.Write("\n Given Number : " + num);
		// Normal way
		int a = (int)(3.5 * num);
		// By Using bitwise
		int b = (num << 1) + (num >> 1) + num;
		if (b < 0 && (-num) % 2 != 0)
		{
			// Handle negative odd number
			b += 1;
		}
		Console.Write("\n Result a : " + a);
		Console.Write("\n Result b : " + b);
	}
	public static void Main(String[] args)
	{
		Multiply task = new Multiply();
		// Test A
		// num = 6
		// (6 << 1)  = 12
		// (6 >> 1)  = 3
		//  num      = 6
		// --------------
		// Result    = 21
		task.multiplyBy3Dot5(6);
		// Test B
		// num = 31
		// (31 << 1)  =  62
		// (31 >> 1)  =  15
		//  num       =  31
		// ---------------
		// Result     = 108
		task.multiplyBy3Dot5(31);
		// Test C
		// num = -5
		// (-5 << 1)  =  -10
		// (-5 >> 1)  =  -3
		//  num       =  -5
		// ---------------
		//             (-18 + 1)
		// Result   = -17
		task.multiplyBy3Dot5(-5);
	}
}

Output

 Given Number : 6
 Result a : 21
 Result b : 21
 Given Number : 31
 Result a : 108
 Result b : 108
 Given Number : -5
 Result a : -17
 Result b : -17
package main
import "fmt"
// Go program for
// Multiply integer number with 3.5
type Multiply struct {}
func getMultiply() * Multiply {
	var me *Multiply = &Multiply {}
	return me
}
func(this Multiply) multiplyBy3Dot5(num int) {
	fmt.Print("\n Given Number : ", num)
	// Normal way
	var a int = (int)(3.5 * float32(num))
	// By Using bitwise
	var b int = (num << 1) + (num >> 1) + num
	if b < 0 && (-num) % 2 != 0 {
		// Handle negative odd number
		b += 1
	}
	fmt.Print("\n Result a : ", a)
	fmt.Print("\n Result b : ", b)
}
func main() {
	var task * Multiply = getMultiply()
	// Test A
	// num = 6
	// (6 << 1)  = 12
	// (6 >> 1)  = 3
	//  num      = 6
	// --------------
	// Result    = 21
	task.multiplyBy3Dot5(6)
	// Test B
	// num = 31
	// (31 << 1)  =  62
	// (31 >> 1)  =  15
	//  num       =  31
	// ---------------
	// Result     = 108
	task.multiplyBy3Dot5(31)
	// Test C
	// num = -5
	// (-5 << 1)  =  -10
	// (-5 >> 1)  =  -3
	//  num       =  -5
	// ---------------
	//             (-18 + 1)
	// Result   = -17
	task.multiplyBy3Dot5(-5)
}

Output

 Given Number : 6
 Result a : 21
 Result b : 21
 Given Number : 31
 Result a : 108
 Result b : 108
 Given Number : -5
 Result a : -17
 Result b : -17
<?php
// Php program for
// Multiply integer number with 3.5
class Multiply
{
	public	function multiplyBy3Dot5($num)
	{
		echo("\n Given Number : ".$num);
		// Normal way
		$a = (int)(3.5 * $num);
		// By Using bitwise
		$b = ($num << 1) + ($num >> 1) + $num;
		if ($b < 0 && (-$num) % 2 != 0)
		{
			// Handle negative odd number
			$b += 1;
		}
		echo("\n Result a : ".$a);
		echo("\n Result b : ".$b);
	}
}

function main()
{
	$task = new Multiply();
	// Test A
	// num = 6
	// (6 << 1)  = 12
	// (6 >> 1)  = 3
	//  num      = 6
	// --------------
	// Result    = 21
	$task->multiplyBy3Dot5(6);
	// Test B
	// num = 31
	// (31 << 1)  =  62
	// (31 >> 1)  =  15
	//  num       =  31
	// ---------------
	// Result     = 108
	$task->multiplyBy3Dot5(31);
	// Test C
	// num = -5
	// (-5 << 1)  =  -10
	// (-5 >> 1)  =  -3
	//  num       =  -5
	// ---------------
	//             (-18 + 1)
	// Result   = -17
	$task->multiplyBy3Dot5(-5);
}
main();

Output

 Given Number : 6
 Result a : 21
 Result b : 21
 Given Number : 31
 Result a : 108
 Result b : 108
 Given Number : -5
 Result a : -17
 Result b : -17
#  Python 3 program for
#  Multiply integer number with 3.5
class Multiply :
	def multiplyBy3Dot5(self, num) :
		print("\n Given Number : ", num, end = "")
		#  Normal way
		a = (int)(3.5 * num)
		#  By Using bitwise
		b = (num << 1) + (num >> 1) + num
		if (b < 0 and(-num) % 2 != 0) :
			#  Handle negative odd number
			b += 1
		
		print("\n Result a : ", a, end = "")
		print("\n Result b : ", b, end = "")
	

def main() :
	task = Multiply()
	#  Test A
	#  num = 6
	#  (6 << 1)  = 12
	#  (6 >> 1)  = 3
	#   num      = 6
	#  --------------
	#  Result    = 21
	task.multiplyBy3Dot5(6)
	#  Test B
	#  num = 31
	#  (31 << 1)  =  62
	#  (31 >> 1)  =  15
	#   num       =  31
	#  ---------------
	#  Result     = 108
	task.multiplyBy3Dot5(31)
	#  Test C
	#  num = -5
	#  (-5 << 1)  =  -10
	#  (-5 >> 1)  =  -3
	#   num       =  -5
	#  ---------------
	#              (-18 + 1)
	#  Result   = -17
	task.multiplyBy3Dot5(-5)

if __name__ == "__main__": main()

Output

 Given Number :  6
 Result a :  21
 Result b :  21
 Given Number :  31
 Result a :  108
 Result b :  108
 Given Number :  -5
 Result a :  -17
 Result b :  -17
#  Ruby program for
#  Multiply integer number with 3.5
class Multiply 
	def multiplyBy3Dot5(num) 
		print("\n Given Number : ", num)
		#  Normal way
		a = (3.5 * num).to_i
		#  By Using bitwise
		b = (num << 1) + (num >> 1) + num
		if (b < 0 && (-num) % 2 != 0) 
			#  Handle negative odd number
			b += 1
		end

		print("\n Result a : ", a)
		print("\n Result b : ", b)
	end

end

def main() 
	task = Multiply.new()
	#  Test A
	#  num = 6
	#  (6 << 1)  = 12
	#  (6 >> 1)  = 3
	#   num      = 6
	#  --------------
	#  Result    = 21
	task.multiplyBy3Dot5(6)
	#  Test B
	#  num = 31
	#  (31 << 1)  =  62
	#  (31 >> 1)  =  15
	#   num       =  31
	#  ---------------
	#  Result     = 108
	task.multiplyBy3Dot5(31)
	#  Test C
	#  num = -5
	#  (-5 << 1)  =  -10
	#  (-5 >> 1)  =  -3
	#   num       =  -5
	#  ---------------
	#              (-18 + 1)
	#  Result   = -17
	task.multiplyBy3Dot5(-5)
end

main()

Output

 Given Number : 6
 Result a : 21
 Result b : 21
 Given Number : 31
 Result a : 108
 Result b : 108
 Given Number : -5
 Result a : -17
 Result b : -17
// Scala program for
// Multiply integer number with 3.5
class Multiply()
{
	def multiplyBy3Dot5(num: Int): Unit = {
		print("\n Given Number : " + num);
		// Normal way
		var a: Int = (3.5 * num).toInt;
		// By Using bitwise
		var b: Int = (num << 1) + (num >> 1) + num;
		if (b < 0 && (-num) % 2 != 0)
		{
			// Handle negative odd number
			b += 1;
		}
		print("\n Result a : " + a);
		print("\n Result b : " + b);
	}
}
object Main
{
	def main(args: Array[String]): Unit = {
		var task: Multiply = new Multiply();
		// Test A
		// num = 6
		// (6 << 1)  = 12
		// (6 >> 1)  = 3
		//  num      = 6
		// --------------
		// Result    = 21
		task.multiplyBy3Dot5(6);
		// Test B
		// num = 31
		// (31 << 1)  =  62
		// (31 >> 1)  =  15
		//  num       =  31
		// ---------------
		// Result     = 108
		task.multiplyBy3Dot5(31);
		// Test C
		// num = -5
		// (-5 << 1)  =  -10
		// (-5 >> 1)  =  -3
		//  num       =  -5
		// ---------------
		//             (-18 + 1)
		// Result   = -17
		task.multiplyBy3Dot5(-5);
	}
}

Output

 Given Number : 6
 Result a : 21
 Result b : 21
 Given Number : 31
 Result a : 108
 Result b : 108
 Given Number : -5
 Result a : -17
 Result b : -17
// Swift 4 program for
// Multiply integer number with 3.5
class Multiply
{
	func multiplyBy3Dot5(_ num: Int)
	{
		print("\n Given Number : ", num, terminator: "");
		// Normal way
		let a: Int = Int((3.5 * Double(num)));
		// By Using bitwise
		var b: Int = (num << 1) + (num >> 1) + num;
		if (b < 0 && (-num) % 2  != 0)
		{
			// Handle negative odd number
			b += 1;
		}
		print("\n Result a : ", a, terminator: "");
		print("\n Result b : ", b, terminator: "");
	}
}
func main()
{
	let task: Multiply = Multiply();
	// Test A
	// num = 6
	// (6 << 1)  = 12
	// (6 >> 1)  = 3
	//  num      = 6
	// --------------
	// Result    = 21
	task.multiplyBy3Dot5(6);
	// Test B
	// num = 31
	// (31 << 1)  =  62
	// (31 >> 1)  =  15
	//  num       =  31
	// ---------------
	// Result     = 108
	task.multiplyBy3Dot5(31);
	// Test C
	// num = -5
	// (-5 << 1)  =  -10
	// (-5 >> 1)  =  -3
	//  num       =  -5
	// ---------------
	//             (-18 + 1)
	// Result   = -17
	task.multiplyBy3Dot5(-5);
}
main();

Output

 Given Number :  6
 Result a :  21
 Result b :  21
 Given Number :  31
 Result a :  108
 Result b :  108
 Given Number :  -5
 Result a :  -17
 Result b :  -17
// Kotlin program for
// Multiply integer number with 3.5
class Multiply
{
	fun multiplyBy3Dot5(num: Int): Unit
	{
		print("\n Given Number : " + num);
		// Normal way
		val a: Int = (3.5 * num).toInt();
		// By Using bitwise
		var b: Int = (num shl 1) + (num shr 1) + num;
		if (b < 0 && (-num) % 2 != 0)
		{
			// Handle negative odd number
			b += 1;
		}
		print("\n Result a : " + a);
		print("\n Result b : " + b);
	}
}
fun main(args: Array < String > ): Unit
{
	val task: Multiply = Multiply();
	// Test A
	// num = 6
	// (6 << 1)  = 12
	// (6 >> 1)  = 3
	//  num      = 6
	// --------------
	// Result    = 21
	task.multiplyBy3Dot5(6);
	// Test B
	// num = 31
	// (31 << 1)  =  62
	// (31 >> 1)  =  15
	//  num       =  31
	// ---------------
	// Result     = 108
	task.multiplyBy3Dot5(31);
	// Test C
	// num = -5
	// (-5 << 1)  =  -10
	// (-5 >> 1)  =  -3
	//  num       =  -5
	// ---------------
	//             (-18 + 1)
	// Result   = -17
	task.multiplyBy3Dot5(-5);
}

Output

 Given Number : 6
 Result a : 21
 Result b : 21
 Given Number : 31
 Result a : 108
 Result b : 108
 Given Number : -5
 Result a : -17
 Result b : -17


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