C Sharp Strings - Practice Questions

Question 1

Which method checks if a string starts with a specified substring?

Accepted Answer

Question 2

What is the result of "Hello".Substring(1, 3)?

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Question 3

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);

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Question 4

Which method removes a specified number of characters from a string?

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Question 5

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

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Question 6

Which method replaces all occurrences of a specified character in a string?

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Question 7

What does the String.Compare() method return when two strings are equal?

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Question 8

What is the purpose of String.Format() method?

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Question 9

Which method is used to convert a string to uppercase in C#?

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Question 10

Which of the following statements are correct?

   1.    String is a value type.
    2.    String literals can contain any character literal including escape sequences.
    3.    The equality operators are defined to compare the values of string objects as well as     references.
4.        Attempting to access a character that is outside the bounds of the string results in an         IndexOutOfRangeException.
5.        The contents of a string object can be changed after the object is created.

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