csharp OOP Questions & Answers

Question 11: What will be the output of the following program?

class Person
{
    public void Introduction(){ 
        Console.WriteLine("I am a person.");
    }

    public string Introduction(){ 
        return "I am a person.";
    }
}

Question 12: What will be the output of the following program?

class Person
{
    public void Introduction(){ 
        Console.WriteLine("I am a person.");
    }

    public void Introduction(string name){ 
        Console.WriteLine("My name is " + name);
    }
        
    public void Introduction(string name, int age = 0){ 
        Console.WriteLine($"My name is {name} and age is {age}");
    }
}

Person p = new Person();
p.Introduction("Steve");

Question 13: What will be the output of the following program?

class Person
{
    public void Introduction(int age, string name){ 
        Console.WriteLine("My name is " + name);
    }
        
    public void Introduction(string name, int age=0){ 
        Console.WriteLine($"My name is {name} and age is {age}");
    }
       
}

Person p = new Person();
p.Introduction("Steve");
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Question 14: What will be the output of the following program?

class Person
{
    public void Introduction(int age = 0, string name){ 
        Console.WriteLine("My name is " + name);
    }
        
    public void Introduction(string name, int age=0){ 
        Console.WriteLine($"My name is {name} and age is {age}");
    }
}

Person p = new Person();
p.Introduction("Steve");

Question 15: What will be the output of the following program?

class Shape
{
    public int Sides { get; set; }
}

class Square : Shape
{
        
}

class Program
{
    public static void Display(Square s){
        Console.WriteLine($"Sides: {s.Sides}");
    }

    public static void Main()
    {
        Shape sq = new Square();
        Sq.Sides = 4;
        Display(sq); 
    }  
}