Chapter 1. Object-Oriented (class, Object, field, method, property, constructor)

usingSystem;usingSystem.Collections.Generic;usingSystem.Linq;usingSystem.Text;namespaceObject-oriented {//Create Person class     Public classPerson {//Fields: Field        Private string_name; Private int_age; Private Char_gender; //Properties: Attributes         Public stringName {Get{return  This. _name; }//when you get the property value, call the Get method            Set{ This. _name = value; }//when assigning a value to a property, call the Set method        }         Public intAge {Get{return  This. _age;} //qualifying the Set property            Set             {                if(Value <0|| Value > -) {Value=0; }                  This. _age =value; }        }         Public CharGender {//to qualify a Get property            Get            {                if(_gender! ='male'&& _gender! ='female')                {                    return_gender ='male'; }                Else                {                    return_gender; }            }                       Set{_gender =value;} }               //Methods: Method (Behavior)         Public voidChlss () {Console.WriteLine ("My name is {0}, I am {1} years old this year, I am {2} born, I can eat and drink to sleep yo ~ ~",              This. Name, This. Age, This.        Gender); }    }}

usingSystem;usingSystem.Collections.Generic;usingSystem.Linq;usingSystem.Text;namespaceObject-oriented {classProgram {Static voidMain (string[] args) {            //to create an object of the person classPerson Lucy =NewPerson (); Lucy.name="Lucy"; Lucy.age= - at; Lucy.gender='Spring';            LUCY.CHLSS ();        Console.ReadLine (); }    }}

Chapter 1. Object-Oriented (class, Object, field, method, property, constructor)