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6. DataBuffer is a class from the Java API that is used to store one or...
Build a java program that has Student class, use arrays of objects {name, age, gpa} to...
Build a java program that has Student class, use arrays of objects {name, age, gpa} to saves 3 students records. Use printable interface with abstract print method. Student class inherits from an abstract Person class that has name, age as attributes. It also has the following 2 methods: abstract setAge and concrete setGPA. Below is the hierarchy and a sample run (using netbeans): Hierarchy: Printable Interface print(Object ( ) ): object ] Abstract Person Class Name: String Age: int Abstract...
java language Problem 3: Shape (10 points) (Software Design) Create an abstract class that represents a Shape and contains abstract method: area and perimeter. Create concrete classes: Circle, Rectang...
java language
Problem 3: Shape (10 points) (Software Design) Create an abstract class that represents a Shape and contains abstract method: area and perimeter. Create concrete classes: Circle, Rectangle, Triangle which extend the Shape class and implements the abstract methods. A circle has a radius, a rectangle has width and height, and a triangle has three sides. Software Architecture: The Shape class is the abstract super class and must be instantiated by one of its concrete subclasses: Circle, Rectangle, or...
Java Problem 2: Employee (10 points) (Software Design) Create an abstract class that represents an Employee and contains abstract method payment. Create concrete classes: SalaryEmployee, CommissionEm...
Java
Problem 2: Employee (10 points) (Software Design) Create an abstract class that represents an Employee and contains abstract method payment. Create concrete classes: SalaryEmployee, CommissionEmployee, HourlyEmployee which extend the Employee class and implements that abstract method. A Salary Employee has a salary, a Commision Employee has a commission rate and total sales, and Hourly Employee as an hourly rate and hours worked Software Architecture: The Employee class is the abstract super class and must be instantiated by one of...
Implement a Java class that is called RainFall that uses a double array to store the...
Implement a Java class that is called RainFall that uses a double array to store the amount of rainfall for each month of the year. The class should have only one instance variable of type double[]. Implement the following methods in the RainFall class: 1. A constructor that creates and initializes all entries in the array to be -1. 2. toString: a method that returns a one-line String representation of the object that includes 12 double numbers that represent the...
In Java, Implement a class MyArray as defined below, to store an array of integers (int)....
In Java, Implement a class MyArray as defined below, to store an array of integers (int). Many of its methods will be implemented using the principle of recursion. Users can create an object by default, in which case, the array should contain enough space to store 10 integer values. Obviously, the user can specify the size of the array s/he requires. Users may choose the third way of creating an object of type MyArray by making a copy of another...
Java. Must not use Java API java.util.Stack /** A class of stacks whose entries are stored...
Java.
Must not use Java API java.util.Stack
/**
A class of stacks whose entries are stored in an array.
Implement all methods in ArrayStack class using resizable
array strategy, i.e. usedoubleArray()
Must throw StackException during exception events in methods:
peek(), pop(), ArrayStack(int initialCapacity)
Do not change or add data fields
Do not add new methods
*/
import java.util.Arrays; public class Arraystack«Т> implements Stack!nterface«T> private TI stack;// Array of stack entries private int topIndex; /7 Index of top entry private...
Java homework Imagine that you have a Point class, like the one that we used in...
Java homework Imagine that you have a Point class, like the one that we used in the improved Circle class. It has the following constructors: Point(double x, double y) Point(Point p) And the following methods: public double getX() public double getY() public void setX(double xValue) public void setY(double yValue) public double distance(Point p) For this question, write statements that create an array of three Point references. Then initialize each element with a Point object that has with x and...
Note: According to the question, please write source code in java only using the class method....
Note: According to the question, please write source
code in java only using the class method. Sample Run (output)
should be the same as displayed in the question below. Make sure
the source code is working properly and no errors.
Exercise #2: Design and implement a program (name it compareArrays) that compares the content of 2 single-dimensional arrays of the same size. The program prompts the users to enter the array size. Then prompts the user to initialize each array...
Class StringImproved public class StringImproved extends java.lang.Object This program replaces the string class with a mutable...
Class StringImproved public class StringImproved extends java.lang.Object This program replaces the string class with a mutable string. This class represents a character array and provide functionalities need to do basic string processing. It contains an array of characters, representing a textual string. Overview In Java, Strings are a great device for storing arrays of characters. One limitation of Strings in Java, however (there is always at least one), is that they are immutable (ie. they cannot be changed once created)....
Java Program Create a class to store an array of with enough space to store 10 integer values. Us...
Java Program Create a class to store an array of with enough space to store 10 integer values. Using the principle of recursion, implement the following: *getSize : returns the size of the array. *get (i): returns the i-th element of the array. If the element does not exist, it throws a "NoSuchElementException” which is a subclass of Java class RunTimeException. *add (val): inserts value as the last element of the array. If necessary, double the size of the current...
Build a java program that has Student class, use arrays of objects {name, age, gpa} to saves 3 students records. Use printable interface with abstract print method. Student class inherits from an abstract Person class that has name, age as attributes. It also has the following 2 methods: abstract setAge and concrete setGPA. Below is the hierarchy and a sample run (using netbeans): Hierarchy: Printable Interface print(Object ( ) ): object ] Abstract Person Class Name: String Age: int Abstract...
java language
Problem 3: Shape (10 points) (Software Design) Create an abstract class that represents a Shape and contains abstract method: area and perimeter. Create concrete classes: Circle, Rectangle, Triangle which extend the Shape class and implements the abstract methods. A circle has a radius, a rectangle has width and height, and a triangle has three sides. Software Architecture: The Shape class is the abstract super class and must be instantiated by one of its concrete subclasses: Circle, Rectangle, or...
Java
Problem 2: Employee (10 points) (Software Design) Create an abstract class that represents an Employee and contains abstract method payment. Create concrete classes: SalaryEmployee, CommissionEmployee, HourlyEmployee which extend the Employee class and implements that abstract method. A Salary Employee has a salary, a Commision Employee has a commission rate and total sales, and Hourly Employee as an hourly rate and hours worked Software Architecture: The Employee class is the abstract super class and must be instantiated by one of...
Java.
Must not use Java API java.util.Stack
/**
A class of stacks whose entries are stored in an array.
Implement all methods in ArrayStack class using resizable
array strategy, i.e. usedoubleArray()
Must throw StackException during exception events in methods:
peek(), pop(), ArrayStack(int initialCapacity)
Do not change or add data fields
Do not add new methods
*/
import java.util.Arrays; public class Arraystack«Т> implements Stack!nterface«T> private TI stack;// Array of stack entries private int topIndex; /7 Index of top entry private...
Note: According to the question, please write source
code in java only using the class method. Sample Run (output)
should be the same as displayed in the question below. Make sure
the source code is working properly and no errors.
Exercise #2: Design and implement a program (name it compareArrays) that compares the content of 2 single-dimensional arrays of the same size. The program prompts the users to enter the array size. Then prompts the user to initialize each array...
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