AP CS A Unit 3 Test PRACTICE

Consider the code shown here which uses the variable points. Which of the following will always produce the same result as this code, regardless of the value of points?

• I, II, and III

• II and III only

• III only

• II only

• I and II only

What is output by the code shown here?

• 11

• 10

• 14

• 13

• Error

Consider the following potential replacements for /* missing code */. Which of these replacements will cause the code segment to always print no?

• 
• 
• 
• 
• 

Which boolean condition is true, given:

int x = 2;

int y = 3;

• x > y || y <= x

• x != y && y == x

• x >= y || !(y >= x)

• !(x >= y) && !(x != y)

• x == y || y > x

• !P && !Q

• !P && Q

• !(P && !Q)

• !P && (P && !Q)

• (P || Q) && !Q

To test if air pressure p is normal (between 27 and 35, including 27 and excluding 35) you would use the following if statement:

if (p ___ 27 ___ p ___ 35)

Which set of symbols - in the order given - correctly fills in the blanks?

• <=, &&, >

• >=, ||, <

• >=, &&, <

• >, &&, <=

• <, ||, >=

Which statement below is equivalent to the one shown here?

• 
• 
• 
• 
• 

How does short circuit evaluation occur in the code shown here?

• If 2 * x < 49 is false it evaluates x == 21

• If 2 * x < 49 is true it evaluates x == 21

• If x == 21 is true it doesn't evaluate 2 * x < 49

• If x == 21 is false it doesn't evaluate 2 * x < 49

• if 2 * x < 49 is true it doesn't evaluate x == 21

What is printed by this code segment?

• 0 1 0 0

• 1 0 1 1

• 0 1 0 1

• 0 0 1 1

• 1 1 0 0

What is the output of this code?

• YES

• NO

• YES NO

• NO YES

• Error (no output)