ExamAdept

Which of the following statement is correct about a String in C#.NET?

A:

A String is mutable because it can be modified once it has been created.

B:

Methods of the String class can be used to modify the string.

C:

A number CANNOT be represented in the form of a String.

D:

A String has a zero-based index.

Answer: D

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Which of the following statements about a String is correct?

A:

A String is created on the stack.

B:

Whether a String is created on the stack or the heap depends on the length of the String.

C:

A String is a primitive.

D:

A String can be created by using the statement String s1 = new String;

Answer: E

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Which of the following is correct way to convert a String to an int?

```
String s = "123"; 
int i;
i = (int)s;
```

String s = "123";
int i;
i = int.Parse(s);

String s = "123"; 
int i;
i = Int32.Parse(s);

String s = "123"; 
int i;
i = Convert.ToInt32(s);

```
String s = "123"; 
int i;
i = CInt(s);
```

A:

1, 3, 5

B:

2, 4

C:

3, 5

D:

2, 3, 4

Answer: D

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Which of the following will be the correct output for the C#.NET code snippet given below?

String s1="Kicit";
Console.Write(s1.IndexOf('c') + " "); 
Console.Write(s1.Length);

A:

3 6

B:

2 5

C:

3 5

D:

2 6

Answer: B

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Which of the following snippets are the correct way to convert a Single into a String?

Single f = 9.8f; 
String s;
s = (String) (f);

Single f = 9.8f; 
String s;
s = Convert.ToString(f);

Single f = 9.8f; 
String s;
s = f.ToString();

Single f = 9.8f; 
String s;
s = Clnt(f);

Single f = 9.8f; 
String s;
s = CString(f);

A:

1, 2

B:

2, 3

C:

1, 3, 5

D:

2, 4

Answer: B

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Questions for: Strings