Term 1: QUIZ 2

What is output to the screen by the following code? int x = 29 % 10; if (x > 10) System.out.println(1); else if (x > 8) System.out.println(2); else if (x > 6) System.out.println(3); else if ( x > 4) System.out.println(4); else System.out.println(5);

2

To test if a grade is a C (between 70 and 79 inclusive) you would use the following if statement: if ( g ______ 70 ______ g ______ 79) What three sets of symbols correctly fill in the blanks?

>=, &&, <=

What are if statements used for in programs?

Making decisions

What does the following code do? if (month == 4) if (day <= 21) System.out.println("Aries");

Tests if month is 4 and day is less than or equal to 21.

A && (A || B)

The following truth table matches which boolean condition?

Given the variables, which boolean condition is true? int a = 5; int b = 5;

b >= a || a >= b

Which if statement below tests if letter holds J? ( letter is a char)

if (letter == 'J')

Consider the following code: if ( !(val >= 80 && val < 90) ) Which of the following produces the same output?

if (val < 80 || val >= 90)

Consider the following code: int x = 8; int y = 17; if (x != y) System.out.print ("one"); else if (x > y) System.out.print ("two"); else if (y < x) System.out.print ("three"); else if (y >= x) System.out.print("four"); else System.out.print("five"); What is the output?

one

Consider the following expression. Assume that x and y are properly initialized boolean variables. (x && y) || !(x || y) The result of evaluating the expression above is best described as:

true only when x and y have the same value