What will be the output of the following C# code snippet?
static void Main(string[] args)
{
StringBuilder sb = new StringBuilder("hello world");
sb.Insert(6, "good");
Console.WriteLine(sb);
Console.ReadLine();
}A. hello 6world
B. hello good world
C. hello goodworld
D. None of the above
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Choose the output returned when read() reads the character from the console?
A. String
B. Char
C. Integer
D. Boolean
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Which of the given stream methods provide access to the output console by default in C#.NET?
A. Console.In
B. Console.Out
C. Console.Error
D. All of the mentioned
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What will be the output for following input from the console as a character?
static void Main(string[] args)
{
Console.WriteLine("what is your name?");
char s;
s = Convert.ToChar(Console.ReadLine());
Console.WriteLine("how are you: "+s);
Console.Read();
}A. Compile time error
B. Code run successfully prints nothing on console
C. Code runs successfully prints input on console
D. Run time error
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Which of the following statement is correct?
A. reverse() method reverses some characters
B. reverseall() method reverses all characters
C. replace() method replaces all instances of a character with new character
D. replace() method replaces first occurrence of a character in invoking string with another character
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Choose the object of TextReader class.
A. Console.In
B. Console.Out
C. Console.Error
D. None of the mentioned
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Which of the following is the correct statement about inspecting an attribute in C#.NET?
A. An attribute can be inspected at link time
B. An attribute can be inspected at design time
C. An attribute can be inspected at run time
D. None of the mentioned
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Choose the output returned when an error condition is generated while read() reads from the console.
A. False
B. 0
C. -1
D. All of the mentioned
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Which among the following methods are used to write characters to a string?
A. StreamWriter
B. StreamReader
C. StringWriter
D. None of the mentioned
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The correct method to pass a parameter to an attribute is?
A. By name
B. By address
C. By value
D. By reference
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Which among the following attempts to read up to count bytes into buffer starting at buffer[offset], returning the number of bytes successfully read?
A. int ReadByte()
B. int Read(byte[] buffer, int offset, int count)
C. Void WriteByte(byte value)
D. None of the mentioned
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Which method of the character stream class returns the numbers of characters successfully read starting at index?
A. int Read()
B. int Read(char[] buffer, int index, int count)
C. int ReadBlock(char[ ] buffer, int index, int count)
D. none of the mentioned
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Which method among the following returns the integer if no character is available?
A. int peek()
B. int read()
C. string ReadLine()
D. none of the mentioned
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Choose the correct statement about the WriteLine()?
A. Can display one or more value to the screen
B. Adds a newline character at the end of the each new output
C. Allows to output data in as many different formats
D. All of the mentioned
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Select the method which returns the number of bytes from the array buffer:
A. void WriteByte(byte value)
B. int Write(byte[] buffer, int offset, int count)
C. write()
D. none of the mentioned
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Which of these classes is used to create an object whose character sequence is mutable?
A. String()
B. StringBuilder()
C. String() & StringBuilder()
D. None of the mentioned
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What will be the output of the following C# code?
static void Main(string[] args)
{
Console.WriteLine("This is a Console Application:");
Console.Write("Please enter your lucky number:");
string val1 = Console.ReadLine();
int val2 = System.Convert.ToInt32(val1, 10);
val2 = val2 * val2;
Console.WriteLine("square of number is:" +val2);
Console.Read();
}A. Compile time error
B. Runs successfully does not print anything
C. Runs successfully, ask for input and hence displays the result
D. Syntax Error
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Which of these classes are used by Byte streams for input and output operation?
A. InputStream
B. InputOutputStream
C. Reader
D. All of the mentioned
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Which among the following is used for storage of unmanaged memory aspects?
A. BufferedStream
B. FileStream
C. MemoryStream
D. UnmanagedMemoryStream
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Select the namespace on which the stream classes are defined?
A. System.IO
B. System.Input
C. System.Output
D. All of the mentioned
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