Accelerated Principles Mid-Term

The following program should draw a circle on the screen

But when we run this code, we don’t see the circle. What is missing from our start function?

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What is the output of the following program: (Assume the user enters ‘Florence’ then ‘Fernandez’.)

• Fernandez Florence

• FLorence Fernandez

• FlorenceFernandez

• Florence Fernandez

Which of the following choices is a properly formed JavaScript variable name, meaning it is both legal in the JavaScript language and considered good style?

• user_age

• UserAge

• userAge

• User age

If you wanted to use the following code to draw a circle to the canvas with the radius, and x and y coordinates given by the user, how would you ask for this information?

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If you were given the following variables:

var distance = 2;

var time = 30;

What line of code would print the speed in km/hr if the distance is given in km and the time is given in minutes? (Speed = distance/time)

• 1. println(distance/(time/60));

• 1. println(distance/time);

• 1. println(distance*(time*60));

• 1. println(distance*time);

What is printed to the screen when the following program is run?

var num = 13 % 3;

println(num);

• 1

• 2

• 3

• 4

What is printed to the screen if the user enters ‘5’ when the following program is run?

• 5

• 25

• 30

• 50

What does the following program do?

• 1. Draws a circle to the center of the canvas with size based on user inputted value

• 1. Draws a circle on the canvas with the center positioned at the coordinate (0,0)

• 1. Draws a circle that is positioned in the bottom right corner of the canvas

• 1. Draw a circle on the canvas that always touches the top and left sides of the canvas

If a user enters a diameter value in the variable diameter, how would we use this to draw the correct sized circle?

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A store has 20 apples in its inventory. How can you store this information in a JavaScript variable?

var numApples == 20;

• 1. var numApples == 20;

• 1. 20 = numApples;

• 1. var numApples = 20;

• 1. var num apples = 20;