Write code for a Java class Rectangle with the following fields and methods: Rectangle - width : double - height : double - area : double + perimeter : double + diagonal : double + Rectangle () : void + setRectangle (double w, double h) : void + printRectangle () : void + changeWidth (double w) : void + changeHeight (double h) : void - static computeDiagonal (double w, double h) : double Fields Methods Methods: Rectangle: Constructor, creates a rectangle with width and height equal to zero. setRectangle: Sets the width and height equal to the two parameters. Computes and stores the rectangle area, perimeter and diagonal. printRectangle: Prints the width, height, area, perimeter and diagonal of the rectangle with labels. All values are printed with a maximum of 2 digits after the decimal. Extra Credit (+5): Include a visual representation of the rectangle: ##### #3 ##### Extra Credit (+2): Visual representation works with length of 1 for height and/or width. changeWidth: Changes the width of the rectangle by the given parameter. changeHeight: Changes the height of the rectangle by the given parameter. computeDiagonal: Static function that computes the length of the diagonal of a triangle with height and width as given by its parameters. Main Program: Program first creates a Rectangle object and sets width and height as entered by the user. The program then repeatedly reads commands of print, height, width or quit until the user enters quit. When the user enters print, the program prints the rectangle private data. When the user enters height, the height is changed by a user entered value. When the user enters width, the width is changed by a user entered value. An error message should be printed if none of the legal inputs is entered. There is a sample run on the next page. Your output should follow the given text and spacing. Include a header comment describing the program and comment all variables, control structures and methods in the program. When your program is running correctly, submit your main program class and Rectangle class source files, .java extensions, in the Homework 2 area on Blackboard. Sample run (input in bold): Input Rectangle: Width: 4 Height: 3 Enter quit, print, width, or height: print Rectangle: #### # # #### Width = 4 Height = 3 Area = 12 Perimeter = 14 Diagonal = 5 Enter quit, print, width, or height: height Enter change in height: 2 Enter quit, print, width, or height: width Enter change in width: 1 Enter quit, print, width, or height: print Rectangle: ##### # # # #### Width = 5 Height = 5 Area = 25 Perimeter = 20 Diagonal = 7.07 Enter quit, print, width, or height: quit

private Vector location;private Vector velocity;private Vector acceleration;private int lifespan;private static final int MAX_LIFESPAN = 25;private static final int RADIUS = 7; public boolean isAlive() { }   public void update() {//code here} Using java, if particle is alive then add velocity vector to location vector, add acceleration vector to velocity vector, and decrement lifespan by 1. Thank you.

Ajva.

hello! can you help debug my program? it's in Java! here are the errors I'm getting: line 189: total_weight cannot be resolved or is not a fieldline 93: the type Snake must implement the inherited abstract method Animal.makeNoise()line 139: the method actual_num_animals(int) is undefined for the type Zooline 152: the left-hand side of an assignment must be a variableline 169: syntax error, insert } to complete Blockline 152: syntax error, insert “. class” to complete expressionline 139: syntax error on token “<“, ( expectedline 139: syntax error on token “{“ invalid AssignmentOperatorline 152: i cannot be resolved to a variableline 152: i cannot be resolved to a variableline 154: i cannot be resolved to a variable   here is my code: package zoo;   public abstract class Animal { private String name; private double weight; private int age;   public Animal() { name=""; weight=0; age=0; }   public Animal(String name, double weight, int age)  { this.name = name; this.weight = weight;…

complete the missing code. public class Exercise09_04Extra { public static void main(String[] args) { SimpleTime time = new SimpleTime(); time.hour = 2; time.minute = 3; time.second = 4; System.out.println("Hour: " + time.hour + " Minute: " + time.minute + " Second: " + time.second); } } class SimpleTime { // Complete the code to declare the data fields hour, // minute, and second of the int type }

public class Course{String name;String dept;int number;public Course (String n, String d, int n){name = n;dept = d;number = n;}public String toString(){return "Course " + name + " in " + dept + " #: " + number;}public static void main (String [] args){Scanner in = new Scanner(System.in);add 10 lines using the scanner and saving them as strings The input for each line will be entered a String, a space, another String, and an int.  Parse the input string into those three items and make an instance of Course.  Add the new Course instance to a generic ArrayList of Course.  print out each Course in the ArrayList.

class TenNums {private:    int *p; public:    TenNums() {        p = new int[10];         for (int i = 0; i < 10; i++) p[i] = i;     }    void display() { for (int i = 0; i < 10; i++) cout << p[i] << " "; }};int main() {    TenNums a;      a.display();      TenNums b = a;      b.display();      return 0;} Continuing from Question 4, let's say I added the following overloaded operator method to the class. Which statement will invoke this method? TenNums TenNums::operator+(const TenNums& b) {  TenNums o;  for (int i = 0; i < 10; i++) o.p[i] = p[i] + b.p [i];  return o;} Group of answer choices TenNums a; TenNums b = a; TenNums c = a + b; TenNums c = a.add(b);

Find the error(s) in the following class definition: public class Circle private double radius; public double setRadius(double a) { radius = a; public void getRadius() { return radius;

class implementation file -- Rectangle.cpp class Rectangle { #include #include "Rectangle.h" using namespace std; private: double width; double length; public: void setWidth (double); void setLength (double) ; double getWidth() const; double getLength() const; double getArea () const; } ; // set the width of the rectangle void Rectangle::setWidth (double w) { width = w; } // set the length of the rectangle void Rectangle::setLength (double l) { length l; //get the width of the rectangle double Rectangle::getWidth() const { return width; // more member functions here

Find the error(s) in the following code snippet and explain how to correct it (them): 1 class Example { 2 public: Example(int y = 3 10) : data (y) {} 4 int getIncrementedData() const { return ++data; 7 } 8. 9 private: 10 int data; 11 };