AP CSA Semester 1 Review (Mod 1 - 5)

5-1-1: What is the value of grade when the following code executes and score is 93?

if (score >= 90)

grade = "A";

if (score >= 80)

grade = "B";

if (score >= 70)

grade = "C";

if (score >= 60)

grade = "D";

else

grade = "E";

• A

• B

• C

• D

What does the following code print when x has been set to -5?

if (x < 0)

System.out.println("x is negative");

else if (x == 0)

System.out.println("x is zero");

else

System.out.println("x is positive");

• x is negative

• x is zero

• x is positive

What does the following code print when x has been set to .8?

if (x < .25)

System.out.println("first quartile");

else if (x < .5)

System.out.println("second quartile");

else if (x < .75)

System.out.println("third quartile");

else

System.out.println("fourth quartile");

• first quartile

• second quartile

• third quartile

• fourth quartile

What is printed when the following code executes and x has been set to zero?

if (x > 0 && (y / x) == 3)

System.out.println("first case");

else

System.out.println("second case");

• first case

• second case

• You will get a error because you can't divide by zero.

What is printed when the following code executes and x has been set to negative 1?

String message = "help";

if (x >= 0 && message.substring(x).equals("help") System.out.println("first case");

else

System.out.println("second case");

• first case

• second case

• You will get a error because you can't use a negative index with substring.

What is printed when the following code executes and x has been set to zero and y is set to 3?

if ((y / x) == 3 || x = 0)

System.out.println("first case");

else

System.out.println("second case");

• first case

• second case

• You will get a error because you can't divide by zero.

What is printed when the following code executes and x equals 4 and y equals 3?

if (!(x < 3 || y > 2))

System.out.println("first case");

else

System.out.println("second case");

• first case

• second case

What is printed when the following code executes and x equals 4 and y equals 3?

if (!(x < 3 || y > 2))

System.out.println("first case");

else

System.out.println("second case");

• first case

• second case

Which of the following is equivalent to the code segment below?

if (x > 2)

x = x * 2;

if (x > 4)

x = 0;

• x = 0;

• if (x > 2)

  x *= 2;

• if (x > 2)

  x = 0;

• if (x > 2)

  x = 0;

  else

  x *= 2;

Assuming that x and y have been declared as valid integer values, which of the following is equivalent to this statement?

(x > 15 && x < 18) || (x > 10 || y < 20)

• (x > 15 && x < 18) && (x > 10)

• (y < 20) || (x > 15 && x < 18)

• ((x > 10) || (x > 15 && x < 18)) || (y < 20)

• (x < 10 && y > 20) && (x < 15 || x > 18)