Efficiently multiply a number by 7
Here given code implementation process.
// C program
// Efficiently multiply a number by 7
#include <stdio.h>
// Perform multiplication by seven
void multiplyBy7(int n)
{
// Equivalent to n *7
printf("\n %d X 7 = %d", n, ((n << 3) - n));
}
int main(int argc, char
const *argv[])
{
// Test Cases
multiplyBy7(-3);
multiplyBy7(10);
multiplyBy7(5);
multiplyBy7(13);
return 0;
}
Output
-3 X 7 = -21
10 X 7 = 70
5 X 7 = 35
13 X 7 = 91
// Java program
// Efficiently multiply a number by 7
public class Multiply
{
// Perform multiplication by seven
public void multiplyBy7(int n)
{
// Same as num * 7
System.out.print("\n" + n + " X 7 = " + ((n << 3) - n));
}
public static void main(String[] args)
{
Multiply task = new Multiply();
// Test Cases
task.multiplyBy7(-3);
task.multiplyBy7(10);
task.multiplyBy7(5);
task.multiplyBy7(13);
}
}
Output
-3 X 7 = -21
10 X 7 = 70
5 X 7 = 35
13 X 7 = 91
// Include header file
#include <iostream>
using namespace std;
// C++ program
// Efficiently multiply a number by 7
class Multiply
{
public:
// Perform multiplication by seven
void multiplyBy7(int n)
{
// Same as num *7
cout << "\n" << n << " X 7 = " << ((n << 3) - n);
}
};
int main()
{
Multiply task = Multiply();
// Test Cases
task.multiplyBy7(-3);
task.multiplyBy7(10);
task.multiplyBy7(5);
task.multiplyBy7(13);
return 0;
}
Output
-3 X 7 = -21
10 X 7 = 70
5 X 7 = 35
13 X 7 = 91
// Include namespace system
using System;
// C# program
// Efficiently multiply a number by 7
public class Multiply
{
// Perform multiplication by seven
public void multiplyBy7(int n)
{
// Same as num * 7
Console.Write("\n" + n + " X 7 = " + ((n << 3) - n));
}
public static void Main(String[] args)
{
Multiply task = new Multiply();
// Test Cases
task.multiplyBy7(-3);
task.multiplyBy7(10);
task.multiplyBy7(5);
task.multiplyBy7(13);
}
}
Output
-3 X 7 = -21
10 X 7 = 70
5 X 7 = 35
13 X 7 = 91
<?php
// Php program
// Efficiently multiply a number by 7
class Multiply
{
// Perform multiplication by seven
public function multiplyBy7($n)
{
// Same as num * 7
echo "\n". $n ." X 7 = ". (($n << 3) - $n);
}
}
function main()
{
$task = new Multiply();
$task->multiplyBy7(-3);
$task->multiplyBy7(10);
$task->multiplyBy7(5);
$task->multiplyBy7(13);
}
main();
Output
-3 X 7 = -21
10 X 7 = 70
5 X 7 = 35
13 X 7 = 91
// Node Js program
// Efficiently multiply a number by 7
class Multiply
{
// Perform multiplication by seven
multiplyBy7(n)
{
// Same as num * 7
process.stdout.write("\n" + n + " X 7 = " + ((n << 3) - n));
}
}
function main()
{
var task = new Multiply();
// Test Cases
task.multiplyBy7(-3);
task.multiplyBy7(10);
task.multiplyBy7(5);
task.multiplyBy7(13);
}
main();
Output
-3 X 7 = -21
10 X 7 = 70
5 X 7 = 35
13 X 7 = 91
# Python 3 program
# Efficiently multiply a number by 7
class Multiply :
# Perform multiplication by seven
def multiplyBy7(self, n) :
# Same as num * 7
print("\n", n ," X 7 = ", ((n << 3) - n), end = "")
def main() :
task = Multiply()
# Test Cases
task.multiplyBy7(-3)
task.multiplyBy7(10)
task.multiplyBy7(5)
task.multiplyBy7(13)
if __name__ == "__main__": main()
Output
-3 X 7 = -21
10 X 7 = 70
5 X 7 = 35
13 X 7 = 91
# Ruby program
# Efficiently multiply a number by 7
class Multiply
# Perform multiplication by seven
def multiplyBy7(n)
# Same as num * 7
print("\n", n ," X 7 = ", ((n << 3) - n))
end
end
def main()
task = Multiply.new()
# Test Cases
task.multiplyBy7(-3)
task.multiplyBy7(10)
task.multiplyBy7(5)
task.multiplyBy7(13)
end
main()
Output
-3 X 7 = -21
10 X 7 = 70
5 X 7 = 35
13 X 7 = 91
// Scala program
// Efficiently multiply a number by 7
class Multiply
{
// Perform multiplication by seven
def multiplyBy7(n: Int): Unit = {
// Same as num * 7
print("\n" + n + " X 7 = " + ((n << 3) - n));
}
}
object Main
{
def main(args: Array[String]): Unit = {
var task: Multiply = new Multiply();
// Test Cases
task.multiplyBy7(-3);
task.multiplyBy7(10);
task.multiplyBy7(5);
task.multiplyBy7(13);
}
}
Output
-3 X 7 = -21
10 X 7 = 70
5 X 7 = 35
13 X 7 = 91
// Swift 4 program
// Efficiently multiply a number by 7
class Multiply
{
// Perform multiplication by seven
func multiplyBy7(_ n: Int)
{
// Same as num * 7
print( n ," X 7 = ", ((n << 3) - n));
}
}
func main()
{
let task: Multiply = Multiply();
// Test Cases
task.multiplyBy7(-3);
task.multiplyBy7(10);
task.multiplyBy7(5);
task.multiplyBy7(13);
}
main();
Output
-3 X 7 = -21
10 X 7 = 70
5 X 7 = 35
13 X 7 = 91
// Kotlin program
// Efficiently multiply a number by 7
class Multiply
{
// Perform multiplication by seven
fun multiplyBy7(n: Int): Unit
{
// Same as num * 7
print("\n" + n + " X 7 = " + ((n shl 3) - n));
}
}
fun main(args: Array < String > ): Unit
{
var task: Multiply = Multiply();
// Test Cases
task.multiplyBy7(-3);
task.multiplyBy7(10);
task.multiplyBy7(5);
task.multiplyBy7(13);
}
Output
-3 X 7 = -21
10 X 7 = 70
5 X 7 = 35
13 X 7 = 91
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