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CuriousTab

CuriousTab

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  • Question
  • Is it possible for you to prevent an object from being created by using zero argument constructor?


  • Options
  • A. Yes
  • B. No

  • Correct Answer
  • Yes 


  • Constructors problems


    Search Results


    • 1. What will be the output of the C#.NET code snippet given below?

      namespace CuriousTabConsoleApplication
      { 
          class Sample
          { 
              static Sample()
              { 
                  Console.Write("Sample class ");
              }
              public static void CuriousTab1()
              { 
                  Console.Write("CuriousTab1 method ");
              } 
          } 
          class MyProgram
          { 
              static void Main(string[ ] args)
              { 
                  Sample.CuriousTab1();
              } 
          } 
      }

    • Options
    • A. Sample class Tab1 method
    • B. Tab1 method
    • C. Sample class
    • D. Tab1 method Sample class
    • E. Sample class Sample class
    • Discuss
    • 2. What will be the output of the C#.NET code snippet given below?

      namespace CuriousTabConsoleApplication
      {
          class Sample
          { 
              public static void fun1()
              { 
                  Console.WriteLine("CuriousTab1 method");
              }
              public void fun2()
              { 
                  fun1(); 
                  Console.WriteLine("CuriousTab2 method");
              }
              public void fun2(int i)
              { 
                  Console.WriteLine(i);
                  fun2(); 
              } 
          } 
          class MyProgram
          { 
              static void Main(string[ ] args)
              { 
                  Sample s = new Sample(); 
                  Sample.fun1(); 
                  s.fun2(123);
              } 
          } 
      }

    • Options
    • A.
      Tab1 method 
      123
      Tabl method 
      Tab2 method
    • B.
      Tab1 method 
      123
      Tab2 method
    • C.
      Tab2 method 
      123
      Tab2 method 
      Tabl method
    • D.
      Tabl method
      123
    • E.
      Tab2 method 
      123
      Tabl method
    • Discuss
    • 3. Which of the following statements are correct?

      1. An argument passed to a ref parameter need not be initialized first.
      2. Variables passed as out arguments need to be initialized prior to being passed.
      3. Argument that uses params keyword must be the last argument of variable argument list of a method.
      4. Pass by reference eliminates the overhead of copying large data items.
      5. To use a ref parameter only the calling method must explicitly use the ref keyword.

    • Options
    • A. 1, 2
    • B. 2, 3
    • C. 3, 4
    • D. 4, 5
    • E. None of these
    • Discuss
    • 4. Which of the following will be the correct output for the C#.NET program given below?

      namespace CuriousTabConsoleApplication
      { 
          class SampleProgram
          {
              static void Main(string[] args)
              { 
                  int num = 1;
                  funcv(num); 
                  Console.Write(num + ", "); 
                  funcr(ref num); 
                  Console.Write(num + ", ");
              }
              static void funcv(int num)
              { 
                  num = num + 10; Console.Write(num + ", ");
              }
              static void funcr (ref int num)
              { 
                  num = num + 10; Console.Write(num + ", ");
              } 
          } 
      }

    • Options
    • A. 1, 1, 1, 1,
    • B. 11, 1, 11, 11,
    • C. 11, 11, 11, 11,
    • D. 11, 11, 21, 11,
    • E. 11, 11, 21, 21,
    • Discuss
    • 5. Which of the following statements are correct about subroutines used in C#.NET?

      1. If we do not return a value from a subroutine then a value -1 gets returned.
      2. Subroutine definitions cannot be nested.
      3. Subroutine can be called recursively.
      4. To return the control from middle of a subroutine exit subroutine should be used.
      5. Subroutine calls can be nested.

    • Options
    • A. 1, 2, 3
    • B. 2, 3, 5
    • C. 3, 5
    • D. 3, 4
    • E. None of these
    • Discuss
    • 6. Which of the following is the correct way to define the constructor(s) of the Sample class if we are to create objects as per the C#.NET code snippet given below?

      Sample s1 = new Sample(); 
      Sample s2 = new Sample(9, 5.6f);

    • Options
    • A.
      public Sample()
      {
          i = 0; 
          j = 0.0f;
      }
      public Sample (int ii, Single jj)
      {
          i = ii;
          j = jj;
      }
    • B.
      public Sample (Optional int ii = 0, Optional Single jj = 0.0f)
      {
          i = ii;
          j = jj;
      }
    • C.
      public Sample (int ii, Single jj)
      {
          i = ii;
          j = jj;
      }
    • D.
      Sample s;
    • E.
      s = new Sample();
    • Discuss
    • 7. Which of the following ways to create an object of the Sample class given below will work correctly?

      class Sample
      {
          int i;
          Single j;
          double k;
          public Sample (int ii, Single jj, double kk)
          {
              i = ii;
              j = jj;
              k = kk;
          } 
      }

    • Options
    • A. Sample s1 = new Sample();
    • B. Sample s1 = new Sample(10);
    • C. Sample s2 = new Sample(10, 1.2f);
    • D. Sample s3 = new Sample(10, 1.2f, 2.4);
    • E. Sample s1 = new Sample(, , 2.5);
    • Discuss
    • 8. Which of the following statements is correct about constructors?

    • Options
    • A. If we provide a one-argument constructor then the compiler still provides a zero-argument constructor.
    • B. Static constructors can use optional arguments.
    • C. Overloaded constructors cannot use optional arguments.
    • D. If we do not provide a constructor, then the compiler provides a zero-argument constructor.
    • Discuss
    • 9. Is it possible to invoke Garbage Collector explicitly?

    • Options
    • A. Yes
    • B. No
    • Discuss
    • 10. In which of the following should the methods of a class differ if they are to be treated as overloaded methods?

      1. Type of arguments
      2. Return type of methods
      3. Number of arguments
      4. Names of methods
      5. Order of arguments

    • Options
    • A. 2, 4
    • B. 3, 5
    • C. 1, 3, 5
    • D. 3, 4, 5
    • Discuss


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