C# Programming :: Datatypes
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Which of the following statements are correct?
- We can assign values of any type to variables of type object.
- When a variable of a value type is converted to object, it is said to be unboxed.
- When a variable of type object is converted to a value type, it is said to be boxed.
- Boolean variable cannot have a value of null.
- When a value type is boxed, an entirely new object must be allocated and constructed.
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Which of the following is the correct ways to set a value 3.14 in a variable pi such that it cannot be modified?
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Which of the following statements are correct about data types?
- Each value type has an implicit default constructor that initializes the default value of that type.
- It is possible for a value type to contain the null value.
- All value types are derived implicitly from System.ValueType class.
- It is not essential that local variables in C# must be initialized before being used.
- Variables of reference types referred to as objects and store references to the actual data.
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Which of the following are the correct way to initialise the variables i and j to a value 10 each?
int i = 10; int j = 10;int i, j; i = 10 : j = 10;int i = 10, j = 10;int i, j = 10;int i = j = 10;
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Which of the following statement correctly assigns a value 33 to a variable c?
byte a = 11, b = 22, c; -
Which of the following statements are correct about datatypes in C#.NET?
- Every datatype is either a value type or a reference type.
- Value types are always created on the heap.
- Reference types are always created on the stack.
- Mapping of every value type to a type in Common Type System facilitates Interoperability in C#.NET.
- Every reference type gets mapped to a type in Common Type System.
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Which of the following is the correct default value of a Boolean type?
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