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Part 1: Design, implement, test, and debug a program with a JFrame that allows the user to enter a series of contacts' names, ages, e-mail addresses, and cell phone numbers, and creates a file from the entered data. Validate the age entry to ensure that it is numeric and between 0 and 120. Include information for three to five contacts. Part 2: Design, implement, test, and debug a program that reads the file you created by the list in Part 1 and displays the records in a JFrame. You may either display all entries in the list at once or display them one at a time; the user interface is up to you. Protect against not being able to open the file.
Create a Java class named HeadPhones to represent a headphone set. The class contains- A private String data field named manufacturer that specifies the name of· A private boolean data field named pluggedIn that specifies if the headphone is plugge..
Displays Quotient and Remainder of above two inputs, Prompts user to type a negative number to exit and any other number to continue
Modify the numbers guessing game program. Suppose that the variable num and guess are as declared and the diff is an int variable.
Write a public static method called sumDigits that will return the sum of the digits within a string.
Describe the steps for inserting a new item at the head of a linked list? Make sure you consider all possible incoming conditions.
This program assignment is provided to let the students understand how to the Operating Systems schedule all the processes on a multiprocessor or multicore environment.
Create a program that simulates a slot machine. To decide which loop structures to use, such as while, do while, and for loop in Java. To use decision structures such as if, if-else, and switch statements in Java
The Carpet House owner wants to put a carpet calculator on his website so that visitors can estimate the amount of carpet they will need to purchase.
In the Java library, a color is specified by its red, green, and blue components between 0 and 255. Write a program BrighterDemo that constructs a Color object with red, green, and blue values of 50, 100, and 150.
Pig is a two player game where the players take turns repeatedly rolling a single 6 sided die. A player repeatedly rolls the die until one of two events happen:
Create a program called Date.java to perform error-checking on the initial values, for instance: fields month, day, and year. Also, provide a method nextDay() to increment the day by one. The Date object should always remain in a consistent state.
A. Give an example of an exception that could be generated outside your code but caught within your code
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