C# Strings Aptitude Questions and Answers | Set 5

static void Main(string[] args)
{
	String str = "CoronaVirus Covid-19";
	String sub;

	sub = str.Substring(6, 11);

	Console.WriteLine(sub);
}

1. Virus
2. Virus Covid
3. Virus Covid-19
4. Runtime Exception

1. The memory space allocated to a string in the stack segment.
2. The memory space allocated to a string in the heap segment.
3. A String is a built-in enumeration.
4. The memory space allocation to a string depends on string size.

static void Main(string[] args)
{
    String []str = {"CoronaVirus", "Covid-19"};
    Console.WriteLine(str[0]+ " "+str[1]);
}

1. CoronaVirus Covid-19
2. CoronaVirusCovid-19
3. Array of strings cannot be created
4. Runtime Exception

static void Main(string[] args)
{
    String str = "1720-plague:1820-CHOLERA:1920-SpanishFlue:2020-CoronaVirus";
    String []sub;

    sub = str.Split(':');

    foreach (string s in sub)
    {
        Console.Write(s + " ");
    } 
}

1. 1720-plague 1820-CHOLERA 1920-SpanishFlue 2020-CoronaVirus
2. 1720-plague:1820-CHOLERA:1920-SpanishFlue:2020-CoronaVirus
3. Spilt() method does not exist
4. Runtime Exception

static void Main(string[] args)
{
	int num = 108;
	String s1 = "My lucky number: ";
	String s2 = Convert.ToString(num);

	Console.WriteLine("{0}{1}", s1, s2);
}

1. My lucky number: '108'
2. My lucky number: 108
3. Runtime Exception
4. Syntax Error