Fe Electrical and Computer Exam 2024

What is top down design? Correct Answer-Top down design is a way of designing your program by starting with the biggest problem and breaking it down into smaller and smaller pieces that are easier to solve. What is the meaning of the x variable in the following code: Correct Answer-The x coordinate of the center of the circle If you were given the following variables, 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) Correct Answer-println(distance/(time/60)); In a graphics canvas, what are the coordinates of the bottom right corner of the window? Correct Answer-getWidth(), getHeight() If Karel starts at Street 1 and Avenue 3 facing East, what street (row) and avenue (column) will Karel be on after this code runs? move(); move(); move(); turnLeft(); move(); Correct Answer-Street 2 and Avenue 6 How many times should you call the start function in a program? Correct Answer-0 Which general While loop definition is written correctly? Correct Answer-while (condition) { // code } You need to write a program that has Karel move 8 times and then put a ball. Which control structure do you need to use? Correct Answer-For Loop What is the output of the following program: (Assume the user enters 'Florence' then 'Fernandez'.) Correct Answer-FlorenceFernandez In the following code, we create a circle and add it to the screen. What is the meaning of the x variable? Correct Answer-The radius of the circle A store has 20 apples in its inventory. How can you store this information in a JavaScript variable? Correct Answer-var numApples = 20; What function do you need to call to get the width of the screen? Correct Answer-getWidth() You want to read input from the user to know how many apples they would like to buy. Which statement should you use to read in a number from the user? Correct Answer-var applesToBuy = readInt("How many apples would you like? "); Why do we use if/else statements in JavaScript? Correct Answer-To either do something if a condition is true or do something else. Why should a programmer indent their code? Correct Answer-Helps show the structure of the code. Easier for other people to understand by matching our code to each command. All code inside a function should be indented. You need to write a program that has Karel put down a tennis ball if the world has dimensions of 1x1. Which control structure do you need to use? Correct Answer-If Statement You need to write a program where Karel will take a ball if there is a ball present, otherwise Karel should put down a ball. Which control structure do you need to use? Correct Answer-If / Else Statement True or False ? We use the Tab Key to indent once to the right in our programming. Correct Answer-True Why do we use while loops in JavaScript? Correct Answer-To repeat some code while a condition is true. What type of error do we have when the program starts running, but doesn't do what it is suppose to do? Correct Answer-Logic Error What is the proper function to call to print to the screen? Correct Answer-println Which general "if" statement definition is written correctly? Correct Answer-if ( condition ) { //code } What symbol do you use to do division in JavaScript? Correct Answer-/ What function do you need to call to ask the user of the program to enter text? Correct Answer-readLine True or False ? A bug can be a simple fix! Correct Answer-True