How many enumerators will exist if four threads are simultaneously working on an ArrayList object?

Related MCQs

• Which of the following statements are correct about an ArrayList collection that implements the IEnumerable interface? 1. The ArrayList class contains an inner class that implements the IEnumerator interface. 2. An ArrayList Collection cannot be accessed simultaneously by different threads. 3. The inner class of ArrayList can access ArrayList class's members. 4. To access members of ArrayList from the inner class, it is necessary to pass ArrayList class's reference to it. 5. Enumerator's of ArrayList Collection can manipulate the array.
• In which of the following collections is the Input/Output index-based? 1. Stack 2. Queue 3. BitArray 4. ArrayList 5. HashTable
• Which of the following statements are correct? 1. We can assign values of any type to variables of type object. 2. When a variable of a value type is converted to object, it is said to be unboxed. 3. When a variable of type object is converted to a value type, it is said to be boxed. 4. Boolean variable cannot have a value of null. 5. When a value type is boxed, an entirely new object must be allocated and constructed.
• Which of the following are NOT true about .NET Framework? 1. It provides a consistent object-oriented programming environment whether object code is stored and executed locally, executed locally but Internet-distributed, or executed remotely. 2. It provides a code-execution environment that minimizes software deployment and versioning conflicts. 3. It provides a code-execution environment that promotes safe execution of code, including code created by an unknown or semi-trusted third party. 4. It provides different programming models for Windows-based applications and Web-based applications. 5. It provides an event driven programming model for building Windows Device Drivers.
• A _______ creates an object by copying variables from another object.
• In Visual Studio, the tool that enables you to connect to a database and automatically populate a dataset object using a TableAdapter object is the ___________wizard:
• Which of the following statements are correct? 1. Instance members of a class can be accessed only through an object of that class. 2. A class can contain only instance data and instance member function. 3. All objects created from a class will occupy equal number of bytes in memory. 4. A class can contain Friend functions. 5. A class is a blueprint or a template according to which objects are created.
• Which of the following is the correct way to create an object of the class Sample? 1. Sample s = new Sample(); 2. Sample s; 3. Sample s; s = new Sample(); 4. s = new Sample();
• A class implements two interfaces each containing three methods. The class contains no instance data. Which of the following correctly indicate the size of the object created from this class?
• To avoid writing additional SQL statements to update a live database, you instantiate an object of which class?