multiply two numbers without using *operator

Question

hello.. i want multiply two numbers without using * operator? plz tell me.

jnmsy · Answer

static int Prod(int a,int b) { if (a == 0 || b == 0) { return 0; } else { int sum = 0; for (int i = 0; i { sum += a; } return sum; } } For more Information on .NET http://www.bestdotnettraining.com/User/TrainingCourses.aspx

Vulpes · Answer

Try this: using System; class Test { static void Main() { int a, b; Console.Write("Enter first number : "); int.TryParse(Console.ReadLine(), out a); Console.Write("Enter second number : "); int.TryParse(Console.ReadLine(), out b); Console.WriteLine("{0} x {1} = {2}", a, b, Multiply(a, b)); Console.ReadKey(); } static int Multiply(int a, int b) { if(a == 0 || b == 0) return 0; int c = Math.Abs(a); int d = Math.Abs(b); int result = 0; for(int i = 1; i if ((a 0) || (a > 0 && b return result; } }

lakshmipathi vemula · Answer

Hello friend, You can as below using System; using System.Collections.Generic; using System.Linq; using System.Text; namespace Forums23042012 { class Program { static void Main(string[] args) { Console.WriteLine(Prod(10,10)); } static int Prod(int a,int b) { if (a != 0 && b != 0) { int sum = 0; for (int i = 0; i { sum += a; } return sum; } else { return 0; } } } }

Kunal Vaishya · Answer

private Double Multiply(Double A, Double B) { Double iResult ; iResult =0; if (A == 0 || B == 0) { iResult = 0; } else { for (int i = 1; i { iResult = iResult + A; } } return iResult; }

Satyapriya Nayak · Answer

Hi Gaurav, Try this... using System; using System.Collections.Generic; using System.ComponentModel; using System.Data; using System.Drawing; using System.Linq; using System.Text; using System.Windows.Forms; namespace WindowsFormsApplication13 { public partial class Form1 : Form { public Form1() { InitializeComponent(); } private void Form1_Load(object sender, EventArgs e) { MessageBox.Show(multiply(5, 5).ToString()); } private int multiply(int a, int b) { int result=0, i=0; while(i != b) { result = addition(result,a); i = addition(i,1); } return result; } private int addition(int a, int b) { int result = 0, carry; carry = a&b; if(Convert.ToBoolean(carry)) { result = a^b; carry = carry result = addition(carry, result); } else { result = a^b; } return result; } } } Thanks If this post helps you mark it as answer

multiply two numbers without using *operator

Answers (5)