EGR 1400 Exam 1 QUESTIONS &
ANSWERS(RATED A+)
In C#, you can simulate rolling two dice by selecting a random number between 1 and 6
to represent each die roll and then adding them together to get the dice total. Let,s say
that we developed a program to do this and we rolled the pair of dice 50 times and
recorded the results of each roll on a sheet of paper. Can we just select one random
number between 2 and 12 and achieve the same experimental results for the 50 rolls as
rolling two die and adding them?
a. No, It's not possible to get the same experimental results with one random number
b. Yes, using the same scaling as before
c. Yes, if the Visual C# code is written to scale the single random number between 2
and 12
d. Yes, if the random number is selected using myRand.Next(2,13); - ANSWER No, It's
not possible to get the same experimental results with one random number
What property of a Label control would you need to set to change the words displayed
in the Label on the form?
a. the Text property
b. the Name property
c. the Captain property
d. the Word property
e. None of these - ANSWER a. the Text property
Which of the following is the best name for a text box that will hold a person's age within
a Visual Studio .NET project, keeping in mind the recommended naming conventions?
a. Form1
b. txtAge
c. txtText1
d. Age
e. None of the above - ANSWER b. txtAge
When the user clicks a button, ______ is raised.
a. an event
b. a setting
c. a method
d. a property - ANSWER a. an event
Which if the following statements will set RandNum to a value between 1 and 3,
inclusive?
, a. RandNum = myRand.Next(1,3);
b. RandNum = myRand.Next(0,3);
c. RandNum = myRand.Next(1,4);
d. RandNum = myRand.Next(0,4);
e. None of these - ANSWER c. RandNum = myRand.Next(1,4);
What is the value of float.Parse("3.8").ToString("0.00")?
a. 3.8
b. 3.80
c. 4
d. 03.80
e. None of the above - ANSWER b. 3.80
What does the following expression result in:
txtText1.Text = txtSalary.Text + txtBonus.Text + txtOvertime.Text;
Given that the values entered for txtSalary is 400, txtBonus is 50 and txtOvertime is 0
a. 450
b. 40050
c. 400500
d. 4500
e. 400 - ANSWER c. 400500
What does the following expression result in (myVar is an integer with int myVar = 0;):
myVar = int.parse(txtSalary.Text) + int.parse(txtBonus.Text) +
int.parse(txtOvertime.Text);
Given that the values entered for txtSalary is 400, txtBonus is 50 and txtOvertime is 0
a. 450
b. 40050
c. 400500
d. 4500
e. 400 - ANSWER a. 450
Which of the following statements declare the variables a and b as type integer?
a. a = 0: b = 0;
b. int a; b=0;
c. int a & b;
d. int a, b;
e. None of these - ANSWER d. int a, b;
Which of the following correctly demonstrates continuing a string on a second line in the
code window to keep the code in one screen instead of scrolling to the right?
ANSWERS(RATED A+)
In C#, you can simulate rolling two dice by selecting a random number between 1 and 6
to represent each die roll and then adding them together to get the dice total. Let,s say
that we developed a program to do this and we rolled the pair of dice 50 times and
recorded the results of each roll on a sheet of paper. Can we just select one random
number between 2 and 12 and achieve the same experimental results for the 50 rolls as
rolling two die and adding them?
a. No, It's not possible to get the same experimental results with one random number
b. Yes, using the same scaling as before
c. Yes, if the Visual C# code is written to scale the single random number between 2
and 12
d. Yes, if the random number is selected using myRand.Next(2,13); - ANSWER No, It's
not possible to get the same experimental results with one random number
What property of a Label control would you need to set to change the words displayed
in the Label on the form?
a. the Text property
b. the Name property
c. the Captain property
d. the Word property
e. None of these - ANSWER a. the Text property
Which of the following is the best name for a text box that will hold a person's age within
a Visual Studio .NET project, keeping in mind the recommended naming conventions?
a. Form1
b. txtAge
c. txtText1
d. Age
e. None of the above - ANSWER b. txtAge
When the user clicks a button, ______ is raised.
a. an event
b. a setting
c. a method
d. a property - ANSWER a. an event
Which if the following statements will set RandNum to a value between 1 and 3,
inclusive?
, a. RandNum = myRand.Next(1,3);
b. RandNum = myRand.Next(0,3);
c. RandNum = myRand.Next(1,4);
d. RandNum = myRand.Next(0,4);
e. None of these - ANSWER c. RandNum = myRand.Next(1,4);
What is the value of float.Parse("3.8").ToString("0.00")?
a. 3.8
b. 3.80
c. 4
d. 03.80
e. None of the above - ANSWER b. 3.80
What does the following expression result in:
txtText1.Text = txtSalary.Text + txtBonus.Text + txtOvertime.Text;
Given that the values entered for txtSalary is 400, txtBonus is 50 and txtOvertime is 0
a. 450
b. 40050
c. 400500
d. 4500
e. 400 - ANSWER c. 400500
What does the following expression result in (myVar is an integer with int myVar = 0;):
myVar = int.parse(txtSalary.Text) + int.parse(txtBonus.Text) +
int.parse(txtOvertime.Text);
Given that the values entered for txtSalary is 400, txtBonus is 50 and txtOvertime is 0
a. 450
b. 40050
c. 400500
d. 4500
e. 400 - ANSWER a. 450
Which of the following statements declare the variables a and b as type integer?
a. a = 0: b = 0;
b. int a; b=0;
c. int a & b;
d. int a, b;
e. None of these - ANSWER d. int a, b;
Which of the following correctly demonstrates continuing a string on a second line in the
code window to keep the code in one screen instead of scrolling to the right?
