Code HS Final Test Review (2022/2023) Rated A+

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Code HS Final Test Review (2022/2023) Rated A+ For Loop ✔✔for(var i = 0; i < COUNT; i++){ } While Loop ✔✔while(boolean expression){ /* Repeat code betweeen brackets while * 'boolean expr... ession' is true */ } If Statement ✔✔if(BOOLEAN_EXPRESSION){ // code to execute if true } If/Else ✔✔if(BOOLEAN_EXPRESSION){ // code if true } else { // code if false } Functions ✔✔/ Functions can take in values, called parameters. // The function below takes in a parameter called // 'input' and prints it. function printText(input) { println(input); } Functions using return ✔✔function addTwo(number) { return number + 2; } Returns the width of the canvas ✔✔getWidth(); Returns the height of the canvas ✔✔getHeight(); Returns the x coordinate of the center of the canvas ✔✔getWidth() / 2; Removes all objects from the canvas ✔✔removeAll(); Create a Circle ✔✔var circle = new Circle(radius); circle.setPosition(x, y); circle.setColor(color); Create a rectangle ✔✔var rect = new Rectangle(width, height); rect.setPosition(x, y); rect.setColor(color); Get radius of a circle ✔✔circle.getRadius(); Change the radius of a circle ✔✔circle.setRadius(radius); Get the position of the center of the circle ✔✔var x = circle.getX(); var y = circle.getY(); Add objects to your screen ✔✔add(obj); Get location of the upper left corner of the rectangle ✔✔var x = rect.getX(); var y = rect.getY(); Create an Arc ✔✔var myArc = new Arc(radius, start, end, unit); More specifically, the parameters are: 1. radius of the arc 2. starting angle of the arc 3. ending angle of the arc 4. angle unit (0 for degrees, 1 for radians) Create a line ✔✔To draw a line from (x1, y1) to (x2, y2) var line = new Line(x1, y1, x2, y2); Set the line color to green line.setColor(Color.green); Set the line width to 10 pixels line.setLineWidth(10); Create an oval ✔✔var oval = new Oval(width, height); oval.setPosition(x, y); oval.setColor(color) Create a graphical text object ✔✔var txt = new Text(label, font); txt.setPosition(x, y); txt.setColor(Color.blue); Comparison Operators ✔✔x == y // is x equal to y x != y // is x not equal to y x > y // is x greater than y x >= y // is x greater than or equal to y x < y // is x less than y x <= y // is x less than or equal to y Math Operators ✔✔+ Addition - Subtraction * Multiplication / Division % Modulus (Remainder) () Parentheses (For order of operations) Random Numbers ✔✔Randomizer.nextInt(low, high); Randomizer.nextBoolean(); Randomizer.nextFloat(low, high); Randomizer.nextColor(); Read a string ✔✔var str = readLine(prompt); Read an integer ✔✔var num = readInt(prompt); Read a float ✔✔var cost = readFloat(prompt); Read a boolean ✔✔var bool = readBoolean(prompt); Declare a variable ✔✔var myVarName; Initialize a variable ✔✔var myVarName = 5; Assign to an existing variable ✔✔myVarName = 10; Increment (add one) ✔✔x++ Decrement (subtract one) ✔✔x-- [Show More]

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