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C# Programming Language - Coggle Diagram

- - - - Enter value from console:
        Console.Write("Enter customer's name");
        string customerName = Console.ReadLine();
        double x = Convert.ToDouble("12");
        const double PI = 3.1416;//define constant
        
        Print out to console:
        Console.WriteLine("{0:C}", 123);
        //Display: $123, C - Currency
        Format float:
        Console.WriteLine(“Loan amount : ${0:#,###.#0} “, 12345);
        // Loan amount : $12,345.00
        Console.WriteLine(“Hexa value {0:X}”, 456); #1C8
        
        Implicit typecasting:
        
        Explicit typecasting may cause "loss data"
        
        How to resolve this ? 2 ways
        
        Using class Convert:
        
        Convert a value type => reference type
        It is Boxing
        
        1 more item...
        
        UsingToString()method:
  - - - Iterate an array:
        
        array2 is a reference of studentNames
        
        Let's check !
- - - - Unchecked block:
        
        Checked block will show Exception
        
        div & modulo:
- - - - Automatic properties(short-hand):
        
        Constructor & object's list:
        
        Inheritance has: parent + child class
        
        Derived/child class:
        
        Cannot inherit from a "sealed" class:
- - - - LINQ query with lambda expression
        
        Select 1 object with FirstOrDefault:
      - LINQ Query syntax: