C# Condition MCQs

Question 1: What will be the output of the following program?

public static void Main(string[] args)
{
	int a=5,b=4;
		
	if((a+a)-(a+b)){
	    Console.Write("a>b");
    }
    else
    {
        Console.Write("b>a");
    }
}

• A>b
• B>a
• Compile-time error
• Runtime error

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Question 2: What will be the output of the following program?

int i = 10, j = 20;

if (i > j)
{
    Console.WriteLine("i is greater than j");
}
else 
{
    Console.WriteLine("i is less than j");
}
else if (i<j) {
    Console.WriteLine("i is equal to j");
}

• I is less than j
• I is greater than j
• I is equal to j
• Compile-time error

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Question 3: What will be the output of the following program?

int x = 80, y = 60;

var result = x > y ? "x is greater than y" : "x is less than or equal to y";

Console.WriteLine(result);

• X is greater than y
• X is less than or equal to y
• Compile-time error
• Runtime error

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Question 4: What will be the output of the following code?

public static void Main()
{
	int num = 10;
	Type t = num.GetType();

  switch (t) {
    case typeof(int):
      Console.WriteLine("int");
      break;
    case typeof(string):
      Console.WriteLine("string");
      break;
    default:
      Console.WriteLine("unknown");
      break;
  }
}

• Int
• String
• Compile-time error
• Runtime error

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Question 5: Which of the above statement(s) is true?

• The switch statement tests the variable against a set of constants.
• The switch statement contains multiple case labels. The default case executes when no case satisfies the expression.
• Each switch case must include break or goto keyword.
• The switch statement can be include cases with string values

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Question 6: What will be the output of the following program?

public static void Main()
{
	bool x=true, y=false;
		
	if (x) if (y) Func1(); else Func2();
}
	
static void Func1() {
	Console.Write("Func1");
}
	
static void Func2() {
	Console.Write("Func2");
}

• Compile-time error
• Runtime error
• Func1
• Func2

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Question 7: What will be the output of the following program?

public static void Main()
{
	int i =1;
	switch (i) {
        case 0:
        while (true) Func1();
    case 1:
        throw new ArgumentException();
    case 2:
        return;
    }
}
	
static void Func1() {
	Console.Write("Func1");
}

• Compile-time error
• Runtime error
• Argument exception
• Func1

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Question 8: What will be the output of the following program?

int a=4, b=6; 
switch (a)
{
    case 4:
        Console.WriteLine ("case 4");
        break;
    case "10":
        Console.WriteLine ("case 10");
        break;
}

• Case 4
• Case 10
• Compile-time error
• Runtime error

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Question 9: What will be the output of the following program?

int a=4, b=6; 
switch (a+b/2)
{
    case 4:
        Console.WriteLine ("case 4");
        break;
    case 5:
        Console.WriteLine ("case 5");
        break;
	case 7:
        Console.WriteLine ("case 7");
        break;
	case 10:
        Console.WriteLine ("case 10");
        break;
}

• Case 4
• Case 5
• Case 7
• Case 10

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Question 10: What will be the output of the following program?:

int a=4, b=6; 
switch (a*b)
{
    case a:
        Console.WriteLine ("case a");
        break;
    case a*b:
        Console.WriteLine ("case a*b");
        break;
	case b:
        Console.WriteLine ("case b");
        break;
}

• Case a*b
• None of the cases will be executed
• Compile-time error
• Runtime error

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