Object-Oriented Programming

To instantiate a static nested class from outside its enclosing class, you must qualify the nested class name with the outer class name, using the syntax Outer.Inner obj = new Outer.Inner(). Other options fail due to missing qualifiers.

Properties in object-oriented languages like C# or Java provide encapsulation by controlling access to class fields. They act as intermediaries, allowing validation and computed logic while hiding the actual field storage.

Properties encapsulate an object's type state by providing controlled access to internal fields. Getters and setters define how state is read and modified, hiding the actual storage mechanism.

Read-only properties have only a get accessor (getter), not a set accessor. The statement incorrectly claims they have only a set accessor. Write-only properties would have only a set accessor.

Read-only properties must be assigned during object construction or initialization, as they cannot be modified afterward. This is typically done through constructors or initializer syntax.

Static properties belong to the class itself, not to instances. They can only access static members (other static fields, properties, or methods), not instance members which require an object reference.

Properties can be overridden polymorphically using keywords like virtual (in base class) and override (in derived class). These modifiers apply to the entire property declaration, not to individual accessors.

An abstract property contains no implementation (code) in the declaring class. It acts as a blueprint, forcing any non-abstract derived class to override and provide the actual implementation for its getters and setters.

C# uses indexers to provide array-like access to objects. Indexers are parameterized properties that allow indexing syntax (obj[index]) instead of traditional property syntax. The statement correctly identifies this relationship.

In C# and similar languages, a property getter must return a value (cannot be void) because it needs to provide the property's value when accessed. The setter can be void since it just modifies state. This question specifically addresses the getter's return requirement.

Property accessibility cannot exceed the accessibility level of its declaring class. For example, if a class is private, you cannot declare a public property within it. This maintains encapsulation and access control principles in object-oriented programming.

In the .NET Framework, System.Object is the ultimate root class from which all other reference and value types directly or indirectly inherit.

Static member functions don't have a 'this' pointer because they are not bound to any object instance - they belong to the class itself. Options A, B, and C are all true: static functions can only access static members, can be called without instantiating the class, and cannot be virtual.

JDK (Java Development Kit) forms an extended subset of SDK (Software Development Kit). In other words, a JDK is a specialized SDK for Java development - it includes the SDK components plus Java-specific tools. The SDK is the broader concept, JDK is specific to Java.