QuestionQuestion

Looping

import java.util.Scanner;

public class MyBranching {

    public static void main(String[] args) {
       Scanner s = new Scanner(System.in);
       int selection = 0;
       while (selection != 4) {
            System.out.print("1. Find the log of a floating point number\n"
                   + "2. Find the absolute value of an integer:\n"
                   + "3. Find the factorial of an integer:\n"
                   + "4. Quit\n"
                   + "--> ");
            selection = s.nextInt();
            switch (selection){
               case 1:
                   log(s);
                   break;
                case 2:
                   abs(s);
                   break;
                case 3:
                   factorial(s);
                   break;
                case 4:
                   System.out.println("End program");
                   break;
                default:
                   System.out.println("Invalid selection");
                   break;
            }
            System.out.println("");
       }
      
    }
   
    private static void factorial (Scanner s){      
       int number = 0;
       boolean isInteger = false;
       while (true) {            
            System.out.print("Enter the number to find the factorial of : ");
            
            try{
                number = Integer.parseInt(s.next());
            } catch (Exception e){
                System.out.println("The number must be an integer.");
                continue;
            }
            break;
       }      
      
       int fac = 1;
       if (number > 1) {            
            for (int i = 2; i <= number; i++) {
                fac *= i;
            }
       }
       System.out.println("factorial of " + number + " is " + fac);
    }

    private static void abs(Scanner s){
       System.out.print("Enter the number find the absolute value of: ");
       int number = s.nextInt();
       int positive = number;
       if (number < 0) {
            positive = number * (-1);
       }
       System.out.println("absolute value of " + number + " is " + positive);
    }
   

    private static void log(Scanner s){
       System.out.print("Enter the number to find the log of: ");
       double number = s.nextDouble();
       System.out.println("log of " + number + " is " + Math.log(number));
    }
   
}


Arrays

• Modify your previous Java program:
o Do not delete any methods that already exist.
o Add a method (not the main method) to find the average of a list of integers:
- Use an array to store the input list.
- Prompt the user for the number of integers. Use this input to set the size of the array.
- Prompt the user for the numbers to find the average of. Store these numbers in the array (use a for loop to gather the input). Ask for the numbers one at a time (ask for a number, wait for user input, ask for the next number, wait for user input, etc.)
- Use a for statement to calculate the average. Note that the average will be a floating point data type so you will need to do a conversion. For instance, the average of 1, 2, 3, 4, and 6 is 3.2, not 3.0.
- Display the result with an output message. Include the numbers being averaged in the output message. Make sure the output message clearly states what the user is looking at.
o In the main method:
- Add the option to find the average to the menu. You should have 5 options (4 possible calculations and the quit option).
- Repeat the program until the user chooses to quit. You may use either a while or do-while statement to repeat the program.
o Compile and run your code.
o Submit your source code as a plain text file with a .java extension. Make sure it compiles without error before submitting it.

Solution PreviewSolution Preview

This material may consist of step-by-step explanations on how to solve a problem or examples of proper writing, including the use of citations, references, bibliographies, and formatting. This material is made available for the sole purpose of studying and learning - misuse is strictly forbidden.

import java.util.Scanner;

public class MyBranching {

    public static void main(String[] args) {
       Scanner s = new Scanner(System.in);
       int selection = 0;
      
       while (selection != 5) {
            System.out.print("1. Find the log of a floating point number\n"
                   + "2. Find the absolute value of an integer:\n"
                   + "3. Find the factorial of an integer:\n"
                   + "4. Find the average of a list of integers:\n"
                   + "5. Quit\n"
                   + "--> ");
            selection = s.nextInt();
            switch (selection){
               case 1:
                   log(s);
                   break;
                case 2:
                   abs(s);
                   break;...
$9.00 for this solution

PayPal, G Pay, ApplePay, Amazon Pay, and all major credit cards accepted.

Find A Tutor

View available Java Programming Tutors

Get College Homework Help.

Are you sure you don't want to upload any files?

Fast tutor response requires as much info as possible.

Decision:
Upload a file
Continue without uploading

SUBMIT YOUR HOMEWORK
We couldn't find that subject.
Please select the best match from the list below.

We'll send you an email right away. If it's not in your inbox, check your spam folder.

  • 1
  • 2
  • 3
Live Chats