2023-2024 Fall final study guide

What does the following code print?

System.out.println(2 % 3);

• 2

• 0

• 3

• 1

What will the following code print?

System.out.println(1 / 3);

• 0.3333333333333333

• 0

• It will result in a run time error

• It will result in a compile time error

• 0.3

What will be the value of b after the code is run?

double a = 9.6982;

int b = 12;

b = (int) a;

• 9.6982

• 9

• 10

• 12

What will be the result of the following?

double value = Math.random();

int num = (int) (value * 5) + 5;

• A random number from 0 to 4

• A random number from 1 to 5

• A random number from 5 to 9

• A random number from 5 to 10

What will be the output ?

System.out.println(1.0 / 3);

• 0

• 3

• 0.333333333333333

• 0.3 with an infinite number of 3's following the decimal point

What does the following code print when x has been set to 187?

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 positive

• x is zero

What is printed when the following code executes and x equals 4 and y equals 3? (hint, read carefully)

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

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

else

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

• first case

• second case

What is the value of grade when the following code executes and score is 80?

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

• E

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

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

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

else

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

• first cse

• second case

• runtime error

Which of the following expressions is equivalent to !(c || d) ?

• (!c) && (!d)

• (c || d)

• (c && d)

• !(c && d)

• (!c) || (!d)