Basic C# Programming Quiz
Computers
9th Grade
Used 3+ times
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16 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which of the following is the correct way to declare an integer variable in C#?
int number;
integer number;
num number;
var number = "int";
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the default value of a string variable in C# if it is not initialized?
0
null
""
"undefined"
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which data type would you use to store a value like 3.14 in C#?
int
string
double
bool
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the output of the following code? ```csharp int x = 5; int y = 2; Console.WriteLine(x + y); ```
7
52
3
10
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which of the following is a valid way to assign a value to a property named `Text` of a label called `label1` in a Windows Form?
label1.Text = "Hello";
label1->Text = "Hello";
label1.text("Hello");
label1.Text: "Hello";
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which keyword is used to declare a variable whose value cannot be changed after initialization in C#?
static
const
var
readonly
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the correct way to convert an integer variable `num` to a string in C#?
num.ToString();
ToString(num);
string(num);
num.toString;
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