Expressions Methods if else Statements Loops Potpourri

8 % 20

8

((20 % 8) / 3) * (20 / 8)

2

15 >= 7 >= 0

INVALID

(15 >= 7) && !true

false

(23 / 7 > 2) || (23 % 7 > 2)

true

This line contains a method return type.

45

This line contains a formal parameter

5 or 45

This is the name of one formal parameter.

args, word, letter

This line contains an actual parameter (argument).

15, 20, 22, 27-28, 32, 34, 36, 39, 51

This is one of those actual parameters (arguments)

System.in, any of the output, count, letter, “Y”, pos

T/F, An if statement must contain an else clause.

F

This line contains a boolean expression.

18, 25, 39, 49, 51

This is a boolean expression that will evaluate to true if an integer, num1, is evenly divisible by 5 and false otherwise. This is a boolean expressi o n that will evaluate to This expression evaluates to true if an integer, num1, is evenly divisible by 5 and false otherwise.

num1 % 5 == 0

This is a boolean expression that will evaluate to true if the String, word, is “CS 139” exactly.

word.equals(“CS 139”)

&&, ||, and ! are examples of this.

Logical operators

This line contains a loop decision.

18, 25, 49

This line contains a loop update.

40,42, 29, 49

This is one update statement.

pos++; cont = true (false); letterStr = keyboard.nextLine();

If we had the word, “Jeopardy”, and the letter “z”, how many times would the loop body in countLetter execute.

8 times, once for each letter.

This kind of loop is a post condition loop.

do while

You have a random number generator declared as rand. This statement will generate a number in the range of 13 – 22.

rand.nextInt(10) + 13

This line contains the declaration of a reference type variable.

7, 8, 9, 10, (5), 45

This statement instantiates a reference object.

keyboard = new Scanner(System.in);

This is a primitive literal found in the file.

0, true, false, 1

These are two of the three variables local to the countLetter method.

word, letter, count, pos