Which of the following statements are correct about the String Class in C#.NET?

CuriousTab

CuriousTab

Home Aptitude

Discussion

Home ‣ C# Programming ‣ Strings See What Others Are Saying!

Question
Which of the following statements are correct about the String Class in C#.NET?
1. Two strings can be concatenated by using an expression of the form s3 = s1 + s2;
2. String is a primitive in C#.NET.
3. A string built using StringBuilder Class is Mutable.
4. A string built using String Class is Immutable.
5. Two strings can be concatenated by using an expression of the form s3 = s1&s2;
Options
A. 1, 2, 5
B. 2, 4
C. 1, 3, 4
D. 3, 5

Correct Answer

1, 3, 4

More questions

2. Which of the following are the correct ways to declare a delegate for calling the function func() defined in the sample class given below?
```
class Sample
{
    public int func(int i, Single j)
    {
        /* Add code here. */
    }
}
```
Options
A. delegate d(int i, Single j);
B. delegate void d(int, Single);
C. delegate int d(int i, Single j);
D. delegate void (int i, Single j);
E. delegate int sample.func(int i, Single j);

3. Which of the following statements is correct about properties used in C#.NET?
Options
A. Every property must have a set accessor and a get accessor.
B. Properties cannot be overloaded.
C. Properties of a class are actually methods that work like data members.
D. A property has to be either read only or a write only.

4. Which of the following assemblies can be stored in Global Assembly Cache?
Options
A. Private Assemblies
B. Friend Assemblies
C. Shared Assemblies
D. Public Assemblies
E. Protected Assemblies

5. Which of the following statements are correct?
1. A struct can contain properties.
2. A struct can contain constructors.
3. A struct can contain protected data members.
4. A struct cannot contain methods.
5. A struct cannot contain constants.
Options
A. 1, 2
B. 3, 4
C. 1, 2, 4
D. 3, 5

7. Which of the following statements are correct about inspecting an attribute in C#.NET?
1. An attribute can be inspected at link-time.
2. An attribute can be inspected at compile-time.
3. An attribute can be inspected at run-time.
4. An attribute can be inspected at design-time.
Options
A. 1, 2
B. 3, 4
C. 1, 3, 4
D. All of the above
E. None of the above

Comments

More in C# Programming: