C# Online Compiler | .NET Fiddle

using System;

public class Program
{
	static bool Condition1()
	{
		Console.WriteLine("\tCondition 1 is evaluated");
		return false;
	}

	static bool Condition2()
	{
		Console.WriteLine("\tCondition 2 is evaluated");
		return true;
	}

	public static void Main()
	{
		Console.WriteLine("--- Conditional operators");
		Console.WriteLine();
		Console.WriteLine("Condition1() && Condition2()");
		if (Condition1() && Condition2())
		{
		// only Condition 1 is evaluated
		}

		Console.WriteLine();
		Console.WriteLine("Condition2() || Condition1()");
		if (Condition2() || Condition1())
		{
		// only Condition 2 is evaluated
		}

		Console.WriteLine();
		Console.WriteLine("Condition1() || Condition2()");
		if (Condition1() || Condition2())
		{
		// both are evaluated
		}

		Console.WriteLine();
		Console.WriteLine("--- Logical operators");
		Console.WriteLine();
		Console.WriteLine("Condition1() & Condition2()");
		if (Condition1() & Condition2())
		{
		// only Condition 1 is evaluated
		}

		Console.WriteLine();
		Console.WriteLine("Condition1() | Condition2()");
		if (Condition1() | Condition2())
		{
		// both are evaluated
		}
	}
}

 
using System;
​
public class Program
{
    static bool Condition1()
    {
        Console.WriteLine("\tCondition 1 is evaluated");
        return false;
    }
​
    static bool Condition2()
    {
        Console.WriteLine("\tCondition 2 is evaluated");
        return true;
    }
​
    public static void Main()
    {
        Console.WriteLine("--- Conditional operators");
        Console.WriteLine();
        Console.WriteLine("Condition1() && Condition2()");
        if (Condition1() && Condition2())
        {
        // only Condition 1 is evaluated