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How to use the return statement in C#?
The return statement is used to return value. When a program calls a function, the program control is transferred to the called function. A called function performs a defined task and when its return statement is executed or when its function-ending closing brace is reached, it returns the program control back to the main program.
The following is an example to learn about the usage of return statement in C#. Here, we are finding the factorial of a number and returning the result using the return statement.
while (n != 1) {
res = res * n;
n = n - 1;
}
return res;Here is the complete example.
Example
using System;
namespace Demo {
class Factorial {
public int display(int n) {
int res = 1;
while (n != 1) {
res = res * n;
n = n - 1;
}
return res;
}
static void Main(string[] args) {
int value = 5;
int ret;
Factorial fact = new Factorial();
ret = fact.display(value);
Console.WriteLine("Value is : {0}", ret );
Console.ReadLine();
}
}
}Output
Value is : 120
Updated on: 23-Jun-2020
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