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# Java

### Simple Java Payroll Code

Write a simple Java payroll code. It needs to ask for the employee name, hours worked, and hourly rate. Then multiply the hours worked by the hourly rate, and disply the employee name and earnings. It should be used just for simple payroll calculation for a small business of only 5 employees.

### Mortgage Calculator Program

Remove drop down box and the user's selection from a menu of available mortgage loans: - 7 years at 5.35% - 15 years at 5.5% - 30 years at 5.75% Have it only calculate and display the mortgage payment amount from user input of the amount of the mortgage, the term of the mortgage, and the interest rate of the mortgage. Al

### Java Program to Monitor User's Clicks

Create a click tracker program as shown in the examples below. Basic capability: Write a complete program that monitors a user's clicks on a grid of nine buttons. When a button is clicked, change its label to "Clicked!".

### Java: Mortgage Payments and Loans

Write the program in Java (without a graphical user interface) and have it calculate the payment amount for 3 mortgage loans: - 7 year at 5.35% - 15 year at 5.5% - 30 year at 5.75% Use an array for the different loans. Display the mortgage payment amount for each loan.

### Java Arrays Implementation Array

What is the concern about how Java implements arrays? What is the starting index of Java arrays? What is the data type of the arrays? What is the importance and use of the keyword "new" when associated with a Java array?

### Database serach using Java

Recently, customer service representatives at your company have been complaining that retrieving a customer record takes too long. The database was developed in house, and the amount of data has grown tremendously over the years. However, management does not want to use a commercial database because they believe the software an

Create a class named Date that stores date values and prints out the date in either a pure numeric format or a name and number format.

### The NewtonsSquareRoot Class

The NewtonsSquareRoot Class Objectives ? Writing a class using conditionals that test double values ? Writing a class using a while loop The project directory should include the following: ? NewtonsSquareRoot.java ? NewtonsSquareRootTest.java Details To approximate the square root of a positive number n using Newton

### Java Program for Payroll of Hourly and Salaries Employees

Write an employee payroll program that uses polymorphism to calculate and print the weekly payroll for your company. There are three types of employees ─ hourly, salaried, and salaried plus commission. Each type of employee gets paid using a different formula. But for all employee types, if the calculated paycheck exceeds \$100

### Java mortgage calculator (no GUI)

Write the program in Java (without a graphical user interface) using a loan amount of \$200,000 with an interest rate of 5.75% and a 30 year term. Display the mortgage payment amount and then list the loan balance and interest paid for each payment over the term of the loan. If the list would scroll off the screen, use loops to d

### Write a static method that checks if a String represents a valid integer value and returns true if valid, or false if not.

INSTRUCTIONS: Paste your source code below each question, and example input and output. (Also attached as a file) -------------------------------------------------------------------- P1. Write a static method that checks if a String represents a valid integer value and returns true if valid, or false if not. For example, "1

### A combination lock has a dial with 26 positions labeled A-Z

Please see the attached file. Objectives ? Group statements into blocks ? Compare integers, doubles, strings, and objects ? Program conditions using Boolean operators and variables The work should include the following: ? CombinationLock.java ? CombinationLockTest.java Details Implement a combination lock cla

### Java program to simulate die rols

A complete program that simulates the rolling of two dice. More specifically, it simulates a user-specified number of rolls and then prints a histogram of the number of rolls for each possible pair value

### Java class creates an array of integers

Java Programming - Array Sort Description Write a Java class that creates an array of integers, fills it with values, prints the unsorted values, sorts the values into ascending order, and finally prints the sorted values. Write a class named ArraySort that has no instance variables, and the following public static method

### Programming - Cat.java Class File

I need some help with writing this program. In the attached document are all the instructions also a sample of the program to be edited. Hopefully that helps, I'm just at the point to where I'm not understanding. Thanks in advance.

### Reading and writing matrices in Java

My assignment is to test which algorithm is more efficient in transposing a matrix: a Naive or Fast Sparse algorithm. I need to construct functions for reach algorithm that call from an input file, which is a sparse Matrix. A text file called M5x5.mat looks like this. 5 5 11 0 3 297 1 0 230 1 4 291 2 0 390

### Java Method for Converting Grades

If the user enters 'numbers': Get input for the grade number in decimal format. i.e. 74.22645 (enter it with 5 decimal places) Utilize the Math class and round the number to zero decimal places, then use the int cast method to convert to an integer. Utilize a switch statement to determine the corresponding letter grade. Out

### Drawing Application: Java GUI

I need some help with the following question: Design a drawing application (have a look at Microsoft Paint application on your Windows system). The application must have menus, and must be able to draw one or more sharps (e. g. point, line, rectangle, oval, etc). The application should use GUI components.

### Java - program structure function

Find a Java application on the Web and describe how the program structure functions. Describe the application in as much detail as possible. What functionality does the application have that you have learned about in this class? How could you improve upon it?

### Interactive Web Page: Swapping Textboxes

Write an interactive Web page named swap.html that contains two text boxes and a button. When the user clicks the button, the contents of the two text boxes should be swapped. The text boxes should appear on the same line, centered in the page, and the button should be centered below. Appropriate labels should accompany all elem

### Definition of a class named Doctor

Give the definition of a class named Doctor whose objects are records for a clinic's doctors. This class will be a derived class of the class SalariedEmployee given in Display 7.5. A Doctor record has the doctor's specialty (such as "Pediatrician", "Obstetrician", "General Practitioner", and so forth; so use the type String), an

### Program to Calculate Diver Scores

In the sport of diving, seven judges award a score between 0 and 10, where each score may be a floating point value. The highest and lowest scores are thrown out and the remaining scores are added together. The sum is then multiplied by the degree of difficulty for that dive. The degree of difficulty ranges from 1.2 to 3.8 point

### Distance Conversion Program: Java Application

Write and run a Java program that, given a distance in metres, outputs that distance in kilometres rounded to the nearest whole kilometre. For example, given 1100m the output will be 1km, and given 1900m the output will be 2km.

### Methods with Multiple Parameters in Java

Explain how methods with multiple parameters are declared. Describe two examples of Java-based applications that might use methods that have two or more parameters. Provide detail about where those applications would be used.

### HotDogStand Class

You operate several hot dog stands distributed throughout town. Define a class named HotDogStand that has a member variable for the hot dog stand's ID number and a member variable for how many hot dogs the stand has sold that day. Create a constructor that allows a user of the class to initialize both values. Also create a me

### Java Inventory Display Program

Please assist with the following: - Choose a product that lends itself to an inventory (for example, products at your workplace, office supplies, music CDs, DVD movies, or software). - Create a product class that holds the item number, the name of the product, the number of units in stock, and the price of each unit. - Cre

### Counting Programs in Java

Define a class called Counter whose objects count things. An object of this class records a count that is a nonnegative integer. Include methods to set the counter to 0, to increase the count by 1, and to decrease the count by 1. Be sure that no method allows the value of the counter to become negative. Include an accessor metho

### Writing Various Programs in Java

A tech support queue consists of n number of positions and the current position that the tech support individual is working with. If there are no customers that need assistance, the tech support person will go on break for x number of seconds (representing minutes). Also if a customer enters the support queue but the queue alrea

### Exception Handling in Java

Exception Handling in Java is a very powerful capability. Exception Handling allows us to check input, verify if files exist, percent division by zero, prevent array out of bounds, and a whole host of other things. What are some of the more popular exception handling uses? Visit: http://java.sun.com/docs/books/tutorial/essential