Purpose

Java looping and format output implementations

Program Specifications:

You are to design a math tutoring program that can be used as a math tutor for a young

student. This program will display a menu allowing user to select an addition, a subtraction,

or a multiplication problem. The last selection on the menu should let user exit the program.

The menu looks like the following:

Math Tutoring Game

Addition

Subtraction

Multiplication

Exit the Game

Here are the steps to play the game:

The program will prompt the user to enter a selection

The program then displays two random numbers between $10$ and $50$ that are to be

either added, subtracted, or multiplied such as:

$36+27$

$-.-.---$

The program should wait for the user to enter the answer. If the answer is correct, a

message of congratulation should be printed. If the answer is incorrect, a message

should be printed showing correct answer.

After user has finished the math problem, the program should display the menu

again. This process is repeated until the user selects the choice $(4)$ to exit the

program.

Input Validation: If the user selects an item not on the menu, display an error

message and display the menu again.

To Solve this problem, we can identify IPO and develop the Pseudocode.Purpose

Java looping and format output implementations

Program Specifications:

You are to design a math tutoring program that can be used as a math tutor for a young

student. This program will display a menu allowing user to select an addition, a subtraction,

or a multiplication problem. The last selection on the menu should let user exit the program.

The menu looks like the following:

Math Tutoring Game

$1.$ Addition

$2.$ Subtraction

$3.$ Multiplication

$4.$ Exit the Game

Here are the steps to play the game:

$1.$ The program will prompt the user to enter a selection

$2.$ The program then displays two random numbers between $10$ and $50$ that are to be

either added, subtracted, or multiplied such as:

$36$

$+27$

$-------$

$3.$ The program should wait for the user to enter the answer. If the answer is correct, a

message of congratulation should be printed. If the answer is incorrect, a message

should be printed showing correct answer.

$4.$ After user has finished the math problem, the program should display the menu

again. This process is repeated until the user selects the choice $(4)$ to exit the

program.

$5.$ Input Validation: If the user selects an item not on the menu, display an error

message and display the menu again.

To Solve this problem, we can identify IPO and develop the Pseudocode.

Input Menu selection

User answer

Processing $$ Use random number to generate $2$ numbers between $10$ and $50$

$($inclusive$)$

$$ Generate math problem from $2$ random numbers and user selected

operation

$$ Prompt for user answer and check user answer for correctness

$$ Repeat the process until user select $(4)$ exit the program

Output Display message about user$$s answer

Lab Assignment $3$

COSC$-1436$ Programming Fundamentals I Java

Variables menuSelection, firstNum, secondNum$,$ userAnswer, correctAnswer $$ all

variables are int type

Constants final int MIN $=10,$ MAX $=50$;

$-$ the range of random number

Random num To generate random number, use Math.random$()$ method

To generate number in range $10-50$ inclusive: Use constant MIN and MAX

MIN $+($int$)($Math$.$random$()*($MAX$-$MIN$+1))$

Pseudocode $1.$ Start a looping structure

$2.$ Display menu $($See above menu display$)$

$3.$ Prompt user to enter menu selection: $(1-4)$

$4.$ Validate menu selection

$5.$ Display proper message for invalid selection or Exit the Game selection

$6.$ Generate random numbers between $10-50$ inclusive

$7.$ Display problem $($See above problem display$)$

$8.$ Prompt user to enter answer

$9.$ Check user answer to see if it is correct and display proper message

$10.$ Repeat the same process until user selects $(4)$ to exit the program