CS1331 Programming Exercise 02 Solution

Problem Description
This assignment will test your basic knowledge of Type Conversion, Strings, and Command Line Input/Output. In this PE you will exercise ...You will be writing 2 programs for the following scenarios: building an elevator pitch and a basic four-function calculator.
Solution Description
Creating an Elevator Pitch
You and your friends are at the career fair and need help creating a simple elevator pitch. As the programmer of the group, your friend’s future job prospects lie in your hands. Are you up for the challenge?
1. Create a class called ElevatorPitch and create a main method inside it.
2. Inside the main method do the following:
• Create a variable called myPitch that will save your completed elevator pitch as a String.
• Create a variable called name that will save your full name as a String.
• Create a variable called gpa that will save your GPA (floating point number).
• Create a variable called graduationYear that will save your graduation year (integer).
• Create a variable called hobby that will save your favorite hobby as a String.
• Create a variable called major that will save your current major as a String.
3. Declare a Scanner variable called myScanner that will take in input from the user. Create a Scanner object and assign it to the myScanner variable. Use this Scanner object to read user input for the following steps. Do NOT instantiate multiple Scanners in ElevatorPitch.
4. Print to the console “Enter your full name: ”
5. Read the value inputted by the user and assign it to name. You should use nextLine() to do this.
6. Print to the console “Enter your gpa: ”
7. Read the value inputted by the user and assign it to gpa. You should use nextDouble() to do this. Note that nextDouble() leaves a newline character in your terminal (from when you pressed enter), which you will need to get rid of with an extra nextLine() call.
8. Print to the console “Enter the year you will graduate: ”
9. Read the value inputted by the user and assign it to graduationYear. You should use nextInt() to do this. Note that nextInt() leaves a newline character in your terminal (from when you pressed Enter), which you will need to get rid of with a call to nextLine().
10. Print to the console “Enter your favorite hobby: ”
11. Read the value inputted by the user and assign it to hobby. You should use nextLine() to do this.
12. Print to the console “Enter your major: ”
13. Read the value inputted by the user and assign it to major. You should use nextLine() to do this.
14. Assign the following String to myPitch:
”Hello, my name is {name}. I’m a {major} major with a gpa of {gpa} graduating in {graduationYear}. In my free time, I like {hobby}.” Where {name},{major},{gpa},{graduationYear}, and {hobby} are the values of the corresponding variables without curly braces.
15. Print myPitch to the console.
NOTE: Prompts, inputs, and output should each be printed on separate lines. You can assume only integers will be inputted for graduation year and only integers or floating point numbers will be inputted for GPA.
Enter your full name:
Dobby Bodd Enter your gpa:
-1.2
Enter the year you will graduate:
3005
Enter your favorite hobby:
getting tested Enter your major: computer science Hello, my name is Dobby Bodd. I’m a computer science major with a gpa of -1.2 graduating in 3005. In my free time, I like getting tested.

Creating a Four-Function Calculator
1. Create a class called Calculator and create a main method inside it.
2. Create a variable called firstNumber which will always be an integer.
3. Create a variable called secondNumber which will always be an integer.
4. Declare a Scanner called myScanner that will take in input from the user. Do NOT instantiate multiple Scanners in Calculator.
5. Print to the console “Enter your first number: ”
6. Read the value inputted by the user and assign it to firstNumber. You should use nextInt() to do this.
7. Print to the console “Enter your second number: ”
8. Read the value inputted by the user and assign it to secondNumber. You should use nextInt() to do this.
9. Print out “Sum is ” followed by the sum of the two numbers
(firstNumber + secondNumber)
10. Print out “Difference is ” followed by the difference of the two numbers
(firstNumber – secondNumber)
11. Print out “Product is ” followed by the product of the two numbers
(firstNumber * secondNumber)
12. Print out “Quotient is ” followed by the quotient of the two numbers
(firstNumber / secondNumber).
The result should be displayed as a decimal regardless of whether the quotient is a real or number (e.g. print 2.5 for 5/2 and print 4.0 for 4/2). In order to do this, you will need to use casting to force floating point division.
NOTE: Prompts, inputs, and output should each be printed on separate lines. You can assume only integers will be inputted for the first and second number.
Enter your first number:
3
Enter your second number:
5
Sum is 8
Difference is -2
Product is 15
Quotient is 0.6
Submitting
To submit, upload the files listed below to the corresponding assignment on Gradescope:
• ElevatorPitch.java
• Calculator.java
Import Restrictions
Feature Restrictions
There are a few features and methods in Java that overly simplify the concepts we are trying to teach or break our autograder. For that reason, do not use any of the following in your final submission:
• var (the reserved keyword)
• System.exit
Collaboration
No collaboration is allowed on this assignment. See syllabus for more details.
Important Notes (Don't Skip)
• Non-compiling files will receive a 0 for all associated rubric items
• Do not submit .class files
• Test your code in addition to the basic checks on Gradescope
• Submit every file each time you resubmit
• Read the "Allowed Imports" and "Restricted Features" to avoid losing points
• Check on Piazza for all official clarifications