gs gs108 Classes - Constructors in Class - Quiz No.1
gs gs108 CSharp Quiz
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Question 1: Number of constructors a class can define is?
1
2
Any number
None of the mentioned
Question 2: The correct way of defining constructor of the given class as and when objects of classes are created is:
maths s1 = new maths(); maths s2 = new maths(5, 5.4f); public maths(int pp, single tt) { p = pp; t = tt; }
sample s;
public sample() { p = 0; t = 0.0f; } public sample(int pp, single tt) { p = pp; t = tt; }
s = new sample();
Question 3: Correct way to define object of sample class in which C# code will work correctly is:
class abc { int i; float k; public abc(int ii, float kk) { i = ii; k = kk; } }
abc s1 = new abc(1);
abc s1 = new abc();
abc s2 = new abc(1.4f);
abc s2 = new abc(1, 1.4f);
Question 4: Correct statement about constructors in C#.NET is?
Constructors can be overloaded
Constructors are never called explicitly
Constructors have same name as name of the class
All of the mentioned
Question 5: Which among the following is the correct statement: Constructors are used to?
initialize the objects
construct the data members
initialize the objects & construct the data members
none of the mentioned
Question 7: Which of the following statements is correct about constructors in C#.NET?
A constructor cannot be declared as private
A constructor cannot be overloaded
A constructor can be a static constructor
None of the mentioned
Question 8: What will be the output of the following C# code?
class abc { public static void a() { console.writeline("first method"); } public void b() { a(); console.writeline("second method"); } public void b(int i) { console.writeline(i); b(); } } class program { static void main() { abc k = new abc(); abc.a(); k.b(20); } } second method 20 second method first method first method 20 first method second method first method 20 second method 20 first method
Question 9: What is the return type of constructors?
int
float
void
none of the mentioned
Question 10: Which method has the same name as that of its class?
delete
class
constructor
none of the mentioned
