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How to define param arrays in C#?
While declaring a method, you are not sure of the number of arguments passed as a parameter. C# param arrays (or parameter arrays) come into help at such times.
This is how you can use the param −
public int AddElements(params int[] arr) { }The following is the complete example −
Example
using System;
namespace Program {
class ParamArray {
public int AddElements(params int[] arr) {
int sum = 0;
foreach (int i in arr) {
sum += i;
}
return sum;
}
}
class Demo {
static void Main(string[] args) {
ParamArray app = new ParamArray();
int sum = app.AddElements(300, 250, 350, 600, 120);
Console.WriteLine("The sum is: {0}", sum);
Console.ReadKey();
}
}
}Output
The sum is: 1620
Updated on: 20-Jun-2020
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