Arrays and Strings in C Sharp
practice.

Keyword used to define call by reference parameter in C# .NET?

How is a string typically processed?

What will be the output of the following C# code?

class Program
{
    static void Main(string[] args)
    { 
        String c = "i love Csharp";
        bool a;
        a = c.StartsWith("I");
        Console.WriteLine(a);
        Console.ReadLine();
    }
}

What will be the output of the following C# code?

class Program
{
    static void Main(string[] args)
    {
        int i = 5;
        int j;
        method1(ref i);
        method2(out j);
        Console.writeline(i + "  " + j);
    }
    static void method1(ref int x)
    { 
        x = x + x;
    }
    static void method2(out int x)
    {
        x = 6;
        x = x * x;
    }
}

Which is the correct way of defining and initializing an array of 3 integers?

What is the advantage of using 2D jagged array over 2D rectangular array?

Which of the following statements are correct?

What will be the output of the following C# code?

static void main(string[] args)
{
    int n = 1;
    method(n);
    console.Writeline(n);
    method1(ref n);
    console.Writeline(n);
}
static void method(int num)
{
    num += 20;
    console.writeline(num);
}
static void method1(ref int num)
{
    num += 20;
    console.writeline(num);
}

What will be the output of the following C# code?

static void Main(string[] args)
{
    String c = "Hello";
    String a = c + "Bye";
    Console.WriteLine(a);
    Console.ReadLine();
}

What will be the output of the following C# code?

static void Main(string[] args)
{
    char A = 'K';
    char B = Convert.ToChar(76);
    A++;
    B++;
    Console.WriteLine(A+ "  " +B);
    Console.ReadLine();
}

What will be the output of the following C# code?

static void Main(string[] args)
{
    int [] a = {1, 2, 3, 4, 5};
    fun(a);
    Console.ReadLine();
}
static void fun(params int[] b )
{
    int[] k = { 3, 4, 7, 8,'\0' };
    for (int i = 0; i < b.Length; i++)
    {
        b[i] = b[i] + k[i] ;
        Console.WriteLine( b[i] + " ");
    }
}

Which of the following string() method are used to compare two strings with each other?

Which statement is correct about following c#.NET code?

int[] a= {11, 3, 5, 9, 6};

What will be the output of the following C# code?

 static void Main(string[] args)
 {
     int[] a = { 2, 21, 34, 46, 85, 88, 90};
     fun(a);
     Console.WriteLine(a + " ");
     Console.ReadLine();
 }
 static void fun(params int [] b )
 {
     int [] c = { 1, 2, 3, 4, 5, 6, 7};
     int i ;
     for (i = 0 ;i < b.Length ;i++)
     if (b[i] % 2 == 0)
     {
         c[i] = b[i];
     }
     Console.WriteLine("even numbers are:");
     for (i = 0 ;i <= b.Length ;i++)
     {
         Console.WriteLine(c[i]);
     }
 }

How to print \ on the screen?

What will be the output of the following C# code?

static void Main(string[] args)
{
    int a = 5;
    int b = 0, c = 0;
    method (a,  ref b, ref c);
    Console.WriteLine(b + "  " + c);
    Console.ReadLine();
}
static int method(int x, int p, ref int k)
{
    p = x + x * x;
    k = x * x + p;
    return 0;
}

Which statement is/are correct?

Which of these methods of class String is used to compare two String objects for their equality?

Which of these is used to access members of class before the object of that class is created?

What is the value returned by function compareTo() if the invoking string is less than the string compared?