Description
Question 1 (9 points):
Purpose: Practice with conditionals; practice with variables and good program design.
Degree of Difficulty: Moderate
For this problem, you will write a program that will allow a user to calculate a letter-based grade, based on a grade percentage.
Here is a description of how your program should look and behave:
– Initially, display the text “Grade Calculator” and “Average:” on the canvas.
– When the user presses a key, show the keys pressed beside “Average:”
– When the user clicks the mouse, show the calculated grade in the bottom right corner of the canvas.
– If a grade is showing and the user clicks the mouse, reset the canvas, clearing both the grade and average text.
Below is a table of which grade should be assigned to each average.
Here are some suggestions for how to design your program, especially with regard to the Model-ViewController design pattern.
– Use at least 2 global variables in your program: current keys pressed and the grade to be displayed.
– Create a function that takes an average as a parameter. This function should have conditionals to determine the appropriate grade and return it.
– Update the global keys pressed variable in your keyPressed() function.
– Implement a conditional in your mouseClicked() function. It will either calculate an appropriate grade or reset the canvas.
NOTE: You can assume that the user will always type numbers. You do not have to handle incorrect data by checking for only numbers. (Feel free to handle this as an extra challenge, but it will not be worth marks.)
![A contact list is a place where you can store a specific contact with other associated information such as a phone number, email address, birthday, etc. Write a program that first takes as input an integer N that represents the number of word pairs in the list to follow. Word pairs consist of a name and a phone number (both strings), separated by a comma. That list is followed by a name, and your program should output the phone number associated with that name. Output "None" if name is not found. Assume that the list will always contain less than 20 word pairs. Hint: here we are going to use oversize array again, so we need a variable to track the number of values in the array. You can use 20 as array capacity. Be careful: Word pairs consist of a name and a phone number (both strings) String[]contactNames=newString[20]; String[]contactNumbers=newString[20]; Important Note: Your output needs to match the required output including the space see Ex: Ex: If the input is: 3 Joe, 123-5432 Linda, 983-4123 Frank,867-5309 Frank the output is: 8675309 Your program must define and call the following method. The return value of getPhoneNumber is the phone number associated with the specific contact name. public static String getPhoneNumber(String[] nameArr, String[] phoneNumberArr, String contactName, int arraySize) Hint: Use two arrays: One for the string names, and the other for the string phone numbers. Please note that the input has comma. You would need to deal with the comma using indexOf and substring. int comma = userInput.indexOf(","); contactNames[i] = userlnput.substring(0, comma); contactNumbers[i] = userInput.substring(comma + 1); 487182.3555262.qx3zqy7 LAB 20.3.1: LAB 3.3: Contact list 3/10 ACTIVITY LabProgram.java Load default template... import java.util.Scanner; public class LabProgram { /* Define your method here */ public static void main(String[ ] args) { /* Type your code here. */ } }](https://gotit-pro.com/wp-content/uploads/2023/10/4d8cd9c4-67df-43e0-ab70-ff8379e78cab.png)
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