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- - Inventory - (5.9.4)
- var STARTING_ITEMS_IN_INVENTORY = 20;
- function start(){
- var numItems = STARTING_ITEMS_IN_INVENTORY;
- while (numItems > 0) {
- println("We have " + numItems + " items in inventory.");
- var itemsBought = readInt("How many would you like to buy? ");
- if (itemsBought <= numItems) {
- numItems -= itemsBought;
- println("Now we have " + numItems );
- } else {
- println("There is not enough in inventory for that purchase.");
- }
- }
- println("All Out!" );
- }
- -----------------------------------------------------------------------------------------------------------------
- - Concentric Circles - (5.9.6)
- var x = getWidth()/2;
- var y = getHeight()/2;
- var RADIUS = 200;
- function start() {
- var circle = new Circle(RADIUS);
- circle.setPosition(x,y);
- circle.setColor(Color.red);
- add(circle);
- while(RADIUS > 0){
- RADIUS -= 40;
- circle = new Circle(RADIUS);
- circle.setPosition(x,y);
- circle.setColor(Color.black);
- add(circle);
- RADIUS -= 60;
- circle = new Circle(RADIUS);
- circle.setPosition(x,y);
- circle.setColor(Color.red);
- add(circle);
- RADIUS -= 40;
- circle = new Circle(RADIUS);
- circle.setPosition(x,y);
- circle.setColor(Color.black);
- add(circle);
- RADIUS -= -60;
- circle = new Circle(RADIUS);
- circle.setPosition(x,y);
- circle.setColor(Color.red);
- add(circle);
- RADIUS -= -20;
- circle = new Circle(RADIUS);
- circle.setPosition(x,y);
- circle.setColor(Color.red);
- add(circle);
- }
- }
- ------------------------------------------------------------------------------
- 5.10.4 Snake Eyes
- function start(){
- var numRolls = 0;
- while (true) {
- numRolls++;
- var rollOne = Randomizer.nextInt (1,6);
- var rollTwo = Randomizer.nextInt (1,6);
- println ("Rolled: " + rollOne + "," + rollTwo);
- if (rollOne == 1 && rollTwo == 1) {
- break;
- }
- }
- println ("It took you " + numRolls + " rolls to get snake eyes. ");
- }
- - 5.10.5 - Better Password Prompt -
- var SECRET = "abc123";
- function start(){
- var password = SECRET;
- while (true) {
- var potential = readLine ("What is le password ");
- if(potential == password) {
- println("You got it!");
- break;
- }else{
- println("your answer is incorrect ");
- }
- }
- }
- --------------------------------------------------------
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