- using static System.Console; 
-   
- public class Program { 
- 	public static void Main() { 
- 		var x = 1; 
- 		var y = 2; 
- 		var a = x & y; 
- 		var b = x == 1; 
- 		var c = y == 2; 
- 		var d = x & y; 
- 		var e = (x & y) == 0; 
- 		WriteLine(a); 
- 		WriteLine(d); //note que é um inteiro 
- 		WriteLine(e); 
- 		//if (x & y) WriteLine("ok"); //não funciona porque if espera um bool e o resultado é int 
- 		if (b & c) WriteLine("ok"); else WriteLine(" não ok"); 
- 		if (Teste(x) & Teste(y)) WriteLine("&  - ok"); else WriteLine("&"); 
- 		if (Teste(x) && Teste(y)) WriteLine("&& - ok"); else WriteLine("&&"); 
- 		if (Teste(x) | Teste(y)) WriteLine("|  - ok"); else WriteLine("|"); 
- 		if (Teste(x) || Teste(y)) WriteLine("|| - ok"); else WriteLine("||"); 
- 		if (Teste(y) & Teste(x)) WriteLine("&  - ok"); else WriteLine("&"); 
- 		if (Teste(y) && Teste(x)) WriteLine("&& - ok"); else WriteLine("&&"); 
- 		if (Teste(y) | Teste(x)) WriteLine("|  - ok"); else WriteLine("|"); 
- 		if (Teste(y) || Teste(x)) WriteLine("|| - ok"); else WriteLine("||"); 
- 	} 
- 	public static bool Teste(int x) { 
- 		WriteLine($"Executou {x}"); 
- 		return x == 2; 
- 	} 
- } 
-   
- //https://pt.stackoverflow.com/q/190579/101 
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