C# Ref and Out Parameters : Parameters Passing « Language Basics « C# / C Sharp

1. C# / C Sharp
2. Language Basics
3. Parameters Passing

C# Ref and Out Parameters

using System;
class Point
{
    public Point(int x, int y)
    {
        this.x = x;
        this.y = y;
    }
    
    public void GetPoint(ref int x, ref int y)
    {
        x = this.x;
        y = this.y;
    }
    
    int x;
    int y;
}

public class RefOutParameters2
{
    public static void Main()
    {
        Point myPoint = new Point(10, 15);
        int x = 0;
        int y = 0;
        
        myPoint.GetPoint(ref x, ref y);
        Console.WriteLine("myPoint({0}, {1})", x, y);
    }
}
           
       

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2.	Passing Parameters By Value and By Ref
3.	Objects can be passed to methods
4.	Simple types are passed by value
5.	Objects are passed by reference
6.	Use ref to pass a value type by reference
7.	Swap two values
8.	Use out
9.	Use two out parameters
10.	Swap two references
11.	Demonstrate params
12.	Use regular parameter with a params parameter
13.	Parameter demo
14.	Passing parameters by reference
15.	Passing parameters by value
16.	Illustrates the use of out parameters
17.	Pass value by reference
18.	Pass value by reference with read only value
19.	Ref and Out Parameters: compiling error
20.	Ref and Out Parameters 2