Scanner & If Statements

 Evaluate (to true or false) each of the following expressions:
14 >= 14
15 > 15
16 != 16
18 >= 19

• T, F, F, F
• T, T, T, T
• F, T, F, F
• F, T, T, F

Evaluate the following expression:
2 + 2 == 4

• true
• false
• sometimes true
• only true on sundays

Evaluate the following expression
Math.pow(2, 3) >= 9;

• true
• false
• compile error
• only true when the Patriots win

True/False: The body of an "if" statement will only be executed if the condition is true.

• True

• False

What happens to the code in the body of an "if" statement if the condition is false?

• The computer determines if it is essential to the program and if it is, then the code is executed anyway.

• The code moves to a coastal city, attempting to find love and start a family. However, low waged and crushing mortgage rates lead to it moving back home where it sits, hoping that one day it will be executed.

• The code is skipped.

• The code stages a revolution and attempts to take over the program, ultimately unsuccessfully, which leads to it not being executed.

Which of these can be paired with an "if" statement to represent other outcomes of a scenario?

• or

• else

• but

• sheboygan

Which symbol means "not equal to"?

• ==

• <=

• >=

• !=

Which of the following is the correct way to instantiate a Scanner that receives input from the user?

• Scanner in = new Scanner(System.in);

• Scanner in = System.in();

• scanner in = Scanner(System.in);

• import java.util.Scanner;

Which of the following scanner methods reads the next whole number?

• nextLine()

• next()

• nextInt()

• nextNumber()

If both a and b are true, what is the outcome of the following statement?

(!a&&b) || a

• true

• false