CS A U1 Review

What are the values of the variables x, y, and z after the following is executed:

• x = 6, y = 6, z = 6

• x = 4, y = 4, z = 4

• x = 4, y = 6, z = 6

• x = 5, y = 4, z = 4

• x = 4, y = 6, z = 5

The following code segment is intended to output 0.5. What, if any, is the error in the code?

• There is a syntax error: you cannot make an arithmetic expression that contains variables of different data types.

• There is a syntax error: you must pass a String as a parameter to System.out.println().

• There is a syntax error: you cannot assign an int value to a double variable without casting.

• There is a logic error: lossy conversion of int to double.

• This code works as intended.

Which of the following will result in a value of type double?

• I only

• II only

• I and II only

• I, II and III

• None

Which of the following would be output by this code segment?

• 7 , 1

• 7.0

• 7.0

• 1

• 7.0 , 1

Which of the following would be output by this code segment? int max = 2147483647; max++; System.out.println(max);

• 2147483648

• 0

• syntax error

• -2147483648

• none of the above

Consider the following code segment. What is printed as a result of executing the code segment? int num = 5 / 3; System.out.print(num); System.out.print(" "); System.out.print((double) num);

• 1.0 , 1

• 2.0 , 2

• 1 , 1.0

• 1.67 , 1

• 1.67 , 1.0

Which of the following expressions evaluate to -1.0? I. (double) 5 / 3 - 2 II. (double) (5 / 3) - 2 III. (double) (5 / 3 - 2)

• I only

• I and II only

• II and III only

• I, II, and III

• None evaluate to -1.0

What will print out from the following code segment?

• 5

• 8

• 5

• 7

• 3