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- Write a program in the Java language requires the management of university students, where student data (name, student number, and specialization) are saved, and then he can add and delete study materials for the current semester, and you can also add the grade for each subject (with the addition of the final code for the degree automatically).Note: The class principle is used to solve this assignment.Write a java program to create a class Employee. The class should include threeinstance variables: name (type: String), ID (type: int), and position (type: String).Write a class TestEmployee to test the class Employee. Read the name, ID andposition of three employees from screen input, create three employee objects usingthe constructor, and display each employee’s name, ID and position.write a Java program that emulates the interview of a candidate for a job position. You need to develop a class that models the data and actions of an applicant for a job position. What data and methods would you define? This is your call. You shall write a class named Person, which you could store in a package of your choice. You will then create a program that imports your class. The project shall include code that creates 3 different "applicants", and then interviews them. In other words, the program shall create three objects off the class "Person" by using the new operator. The program shall populate those objects with data, and then shall activate methods in those objects to retrieve and sometimes process their data. All answers provided by an applicant, i.e. object, shall be displayed on the standard output.
- Write a Java program: In the board game Scrabble, each tile contains a letter, which is used to spell words in rows and columns, and a score, which is used to determine the value of words. The point of this exercise is to practice the mechanical part of creating a new class definition: Write a definition for a class named Tile that represents Scrabble tiles. The instance variables should be a character named "letter" and an integer named "value". Write a constructor that takes parameters named letter and value, and initializes the instance variables. Create getters for both of the attributes. (No setters, so that a Tile is immutable.) Implement the .toString() and .equals methods for a Tile.Write a Java program for a class named Baby. A Baby has a name of type String and an ageof type integer.Supply two constructors: one will be the default constructor, that just setsdefault values for the name and age; the second constructor will take twoparameters, a string to set the name and an integer to set the age. Also, supplymethods for setting the name, setting the age, getting the name and getting theage.The class should not contain I/O methods; input of values to the instancevariables must be done with a set method or constructor, output of values fromthe instance variables must be done with get methods. The set method for thename instance variable should ensure that the input is not empty or containwhitespaces (otherwise set a default value). The set method for the ageinstance variable should validate the input to be between 1 and 4 inclusive(otherwise set a default value).Give Java code for an equals method for the Baby class. Babies count asbeing the same (i.e. equal) if…Programing language is Java. Define a class Person that represents a person. People have a name, an age, anda phone number. Since people always have a name and an age, your class shouldhave a constructor that has those as parameters. Define a toString() method whichdisplays all of the relevant information using a format like this: “Jim Lahey - Age 57- Phone 9025555555”.
- Write a program in java Design a class that holds the following personal data: name, address, age, and phone number.Write appropriate accessor and mutator methods. Demonstrate the class by writing aprogram that creates three instances of it. One instance should hold your information, andthe other two should hold your friends’ or family members’ information.write a java program A course has a name, a course number, a department code(for example, CS, MATH) and a room number.• Include a static variable used to assign the course number to each Course in theconstructor. The value of the variable will start at 1000.• Write the instance variables, the accessors (getters), the mutators (setters) and twoconstructors for the class. One of the constructors should be the no args constructorWrite a second class, XXX_ TestCourse (XXX is your Kean Id) ,which will have amain method.• Create an Array of Course objects, which can hold 3 elements.• Using a loop:• Ask the user for the name, department and room number for 3 courses.• Create course objects.• Store the objects in the Array• At the end, traverse the array of courses and print each course on a separate lineUsing JAVA write a code to: Implement a class Person with a name and a year of birth. Add a class Student that inherits from Person and has a major. Add a class Instructor that inherits from Person and has a salary. For each class, write the needed constructors, getters, setters, and a toString method that stringifies the instance variables in a readable format. Supply a test program that instantiates an instance of each class and exercises each method defined for the class.
- Write a java program in a class CountPoor that counts the number of families that are considered poor. Write and use a class Family that has the attributes. income—a double value that is the income for the family size—the number of people in the family and the following methods: Family(income, size)—a constructor that sets the attributes isPoor(housingCost, foodCost)—a method that returns true if housingCost + foodCost * size is greater than half the family income (foodCost is the average food cost for an individual, while housingCost is for the family) toString—a method that returns a string containing the information about the family The program should read an integer k from the keyboard and then create an array of size k whose base type is Family. It should then create k objects of type Family and put them in the array, reading the income…Write the Java class named Paint that has/should do the following: 1. Three properly encapsulated variables: brand of type String, code of type int, and color of type String. 2. A constructor that takes two parameters and sets the brand and color instance variables. The code should be set to the number of characters in brand plus the number of characters in color. For example, if brand is "Bear" and color is "red", then code is set to 7 (because 4 + 3 = 7). 3. A default constructor that sets brand to "Bear", color to "Base", and code to 0. 4. A getter method and setter method for the code variable. 5. Correctly override the equals method to test if two Paint objects are equal. Make sure to handle null and type checks appropriately. Two Paint objects are equal if all of their instance variables are equal. 6. Override the toString method to return the values of the color, brand and code instance variables in that order, separated by spaces.First, you need to design, code in Java, test and document a base class, Student. The Student class will have the following information: A. Title of the student (eg Mr, Miss, Ms, Mrs etc)B. A first name (given name)C. A last name (family name/surname)D. Student number (ID) – an integer number (of type long)E. A date of birth (in day/month/year format – three ints) - (Do NOT use the Date class from JAVA)The student class will have at least the following constructors and methods:(i) two constructors - one without any parameters (the default constructor), and one with parameters to give initial values to all the instance variables.(ii) a reasonable number of set and get methods.(iii) methods to compute the final overall mark and the final grade (which will be overridden in the respective child classes). These two methods will be void methods that set the appropriate instance variables. Remember one method can call another method. If you prefer, you can define a single method that sets…