Warm-up Questions

1. What is parameterized design?
2. What is conditional design?
3. What are datatypes? Name 3 examples, and explain how you would declare them in JavaScript (p5) versus Java (Processing)
4. What do each of these operators do? &&, ||, +=, ++, %
5. What is the difference between using a single = and == ?
6. What are three ways to write "subtract 1 from x" ?
7. Draw a sketch of the expected output on screen for the following code.
for (let i = 0; i < 5; i++){
rect(i * 30, height/2, 30, 30);
}
8. Why are functions used in coding?
9. What is the difference between a class and an object?
10. Describe the role of the constructor method.
11. When would you need to use a boolean variable
12. Review the following code. What is the value of b after running this code?
boolean b = false;
b = !b;
13. What will be printed out?
boolean iLoveProgramming = true;
print("It is “+ !(!(iLoveProgramming))) + " that I love programming!");
14. What does the following code print out?
let counter = 1;
let num = 10;
while (counter < num)
{
print(counter);
counter++;
}
15. Describe in English words (pseudocode) what this program does.
function setup() {
createCanvas(300, 300);
}
function draw() {
rect(100, 100, 100, 100);
}
function mousePressed() {
if ((mouseX > 100) && (mouseX < 200) && (mouseY > 100) && (mouseY < 200)){
fill(random(0, 255), random(0,255),random(0,255));
} else {
fill(255);
}
}

Code Repair

1. Removing Objects from an Array(answer)
2. Local vs. Global Variable(answer)
3. Bouncy Ball(answer)
4. Booleans(answer)
5. Classes & Objects(answer)
6. Conditionals + for Loop(answer)
7. Classes & Objects(answer)
8. Dist()(answer)