ms_learn_csharp/013_eval_boolean_expressions/bool_logic/Program.cs

void sep(){
    Console.WriteLine("+-----+");
}

Console.WriteLine("a" == "a");
Console.WriteLine("a" == "A");
Console.WriteLine(1 == 2);
sep();

string myValue = "a";
Console.WriteLine(myValue == "a");
sep();

Console.WriteLine("a" == "a ");
sep();

string value1 = " a";
string value2 = "A ";
Console.WriteLine(value1.Trim().ToLower() == value2.Trim().ToLower());
sep();

Console.WriteLine("a" != "a");
Console.WriteLine("a" != "A");
Console.WriteLine(1 != 2);

myValue = "a";
Console.WriteLine(myValue != "a");
sep();

Console.WriteLine(1 > 2);
Console.WriteLine(1 < 2);
Console.WriteLine(1 >= 1);
Console.WriteLine(1 <= 1);
sep();

string pangram = "The quick brown fox jumps over the lazy dog.";
Console.WriteLine(pangram.Contains("fox"));
Console.WriteLine(pangram.Contains("cow"));
sep();

// These two lines of code will create the same output

Console.WriteLine(pangram.Contains("fox") == false);
Console.WriteLine(!pangram.Contains("fox"));
sep();

Console.WriteLine(!pangram.Contains("fox"));
Console.WriteLine(!pangram.Contains("cow"));
sep();

int a = 7;
int b = 6;
Console.WriteLine(a != b); // output: True
string s1 = "Hello";
string s2 = "Hello";
Console.WriteLine(s1 != s2); // output: False
sep();

int saleAmount = 1001;
Console.WriteLine($"Discount: {(saleAmount > 1000 ? 100 : 50)}");

saleAmount = 1;
Console.WriteLine($"Discount: {(saleAmount > 1000 ? 100 : 50)}");
sep();