Arrays and Strings in C Sharp MCQs with Answers 2027

Q81

Select the correct declaration of the defining array of parameters.

Options are not available for this question.

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Q82

Choose the effective stringBuilder method which helps in producing output for the following C# code?

static void Main(string[] args)
{
    StringBuilder s = new StringBuilder("object");
    s./*______*/("Oriented Language");
    Console.WriteLine(s);
    Console.ReadLine();
}
Output : objectOriented Language

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Q83

Open question

Which of these methods is used to compare two strings such that after comparison output returns different integer values as (0 for false, 1 for true)?

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Q84

Open question

Which of the following statements is correct?

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Q85

Open question

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

static void Main(string[] args)
{
    int[] x = {65, 66, 67, 68, 69, 70};
    fun(x);
    Console.ReadLine();
}
static void fun(params int[] b )
{
    int i;
    for (i = 5; i > 0 ; i--)
    {
        b[i] = b[i] + 32;
        Console.WriteLine(Convert.ToChar(b[i]));
    }
}

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Q86

Open question

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

static void Main(string[] args)
{
     String a = "Ilove";
     String b = "CSHARP";
     b = string.Concat(a,' ',b);
     string d = b.TrimStart('I', 'l', 'o', 'H');
     Console.WriteLine(d);
     Console.ReadLine();
}

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Q87

Open question

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

static void Main(string[] args)
{
    double a = 345.09;
    byte c = (byte) a;
    Console.WriteLine(c);
    Console.ReadLine();
}

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Q88

Open question

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

class sum   
{
    public int x;
    private int y;
    public void math(int a, int b)
    {
        x = a * 4;
        y = b;
    }
}    
class Program
{
    static void Main(string[] args)
    {
        sum p = new sum();   
        p.math(12, 30);
        Console.WriteLine(p.x + "  " + p.y);
        Console.ReadLine();
    }
}

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Q89

Open question

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

static void Main(string[] args)
{
    String obj = "hello";
    String obj1 = "worn";   
    String obj2 = obj;
    Console.WriteLine(obj + "  " + (obj1.Replace('w' ,'c')));
    Console.ReadLine();
}

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Q90

Open question

Choose selective differences between an array in c# and array in other programming languages.

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Q91

Open question

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

class Program
{
    static void Main(string[] args)
    { 
        String []chars = {"z", "x", "y", "z", "y"};
        for (int i = 0; i < chars.Length; ++i)
        for (int j = i + 1; j < chars.Length; ++j)
        if(chars[i].CompareTo(chars[j]) == 0)
        Console.WriteLine(chars[j]);
        Console.ReadLine();
    }
}

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Q92

Open question

Which of these methods of class String is used to separate a substring from a String object?

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Q93

Open question

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

static void Main(string[] args)
{
    string s1 = "Hello" + " I " + "Love" + " ComputerScience ";
    Console.WriteLine(s1);
    Console.ReadLine();
}

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Q94

Open question

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

String a = "Csharp";
String b = "CSHARP";
int c;
c = a.CompareTo(b);
Console.WriteLine(c);

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Q95

Open question

Complete the following C# code with "foreach condition".

int[][]a = new int[2][];
a[0] = new int[3]{3, 4, 2};
a[1] = new int[2]{8, 5};
foreach( int[]i in a)
{
/* add for loop */
console.write( j+ " ");
console.writeline();
}

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Q96

Open question

Statements about 'ref' keyword used in C#.NET are?

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Q97

Open question

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

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Q98

Open question

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

static void Main(string[] args)
{
    Program p = new Program();
    p.display(2, 3, 8);
    int []a = { 2, 56, 78, 66 };
    Console.WriteLine("example of array");
    Console.WriteLine("elements added are");
    p.display(a);
    Console.ReadLine();
}
public void display(params int[] b)
{
    foreach (int i in b)
    {
        Console.WriteLine("ARRAY IS HAVING:{0}", i);
    }
}

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Q99

Open question

Which of these methods of class String is used to check whether a substring exists at the beginning of the particular string?

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Q100

Open question

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

static void main(string[] args)
{
    int []arr = new int[]{ 1, 2, 3, 4, 5};
    fun (ref arr);
    for (int i = 0; i < arr.Length ; i++)
    Console.WriteLine( arr[i] + "  ");
}
static void fun(ref int[]a)
{
    a = new int[6];
    a[3] = 32;
    a[1] = 24;
}

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Arrays and Strings in C Sharppractice.

Arrays and Strings in C Sharp
practice.