public class LabProgram { public static void main(String args[]) { Course cis162 = new Course(); int beforeCount; String toDrop; // Example students for testing cis162.addStudent(new Student("Henry", "Nguyen", 3.5)); cis162.addStudent(new Student("Brenda", "Stern", 2.0)); cis162.addStudent(new Student("Lynda", "Robison", 3.2)); cis162.addStudent(new Student("Sonya", "King", 3.9)); toDrop = "Stern"; beforeCount = cis162.countStudents(); cis162.dropStudent(toDrop); System.out.println("Course size: " + beforeCount + " students"); System.out.println("Course size after drop: " + cis162.countStudents() + " students"); } }

public class SeperateDuplicates { public static void main(String[ args) { System.out.printIn(seperateDuplicatesChars("Hello")); System.out.printin(seperateDuplicatesChars ("Bookkeeper"')); System.out.printin(seperateDuplicatesChars("Yellowwood door"')); System.out.printin(seperateDuplicatesChars("Chicago Cubs")); */ public static String seperateDuplicatesChars(String str) { //To be completed } }

// Program gets a quantity ordered from user // then determines price and discount based on quantity // price per item before discounts is 6ドル.00 // order 15 or more, get a 20% discount // order 10 to 14 - get a 14% discount // order 5 to 9, get a 10% discount using System; using static System.Console; using System.Globalization; class DebugSeven3 { static void Main() { int quantity; double price; quantity = GetQuantity(); price = CalculatePrice(int quantity); WriteLine("Final price for {0} items is {1}.", quantity, price.ToString("C", CultureInfo.GetCultureInfo("en-US"))); } private static int GetQuantity() { int quan; WriteLine("Enter number of items >> "); quan = Convert.ToInt32(ReadLine()); return quan; } private double CalculatePrice(int quantityOrdered) { double PRICE_PER_ITEM = 6.00; double price = 0; double discount = 0; int[] quanLimits = {0, 5, 10, 15}; double[] limits =...

Computer Science c++ help comment code please. Complex has multiple parameters to overload i think. class Complex{public: Complex(); //There are no parameters because... Complex(double); //There is one parameter because... Complex(double, double);//There are two parameters because... double get_Real(); void set_Real(double); double get_Imaginary(); void set_Imaginary(double); friend ostream& operator << (ostream& out, Complex& r); //explain friend istream& operator >> (istream& in, Complex& r);//explainprivate: double real; double imaginary;}; ostream& operator << (ostream& out, Complex& r) //{ double a = r.get_Real(); double b = r.get_Imaginary(); if (a != 0)out << a; if (b < 0) out << "-" << abs(b) << "i"; if (b > 0 && b != 1) out << "+" << b << "i"; if (b == 0) out << "0"; if (b == 1 && a != 0) out << "+" <<...

Statement that increases numPeople by 5. Ex: If numPeople is initially 10, the output is: There are 15 people.

Java

public class KnowledgeCheckTrek { public static final String TNG = "The Next Generation"; public static final String DS9 = "Deep Space Nine"; public static final String VOYAGER = "Voyager"; public static String trek(String character) { if (character != null && (character.equalsIgnoreCase("Picard") || character.equalsIgnoreCase("Data"))) { // IF ONE return TNG; } else if (character != null && character.contains("7")) { // IF TWO return VOYAGER; } else if ((character.contains("Quark") || character.contains("Odo"))) { // IF THREE return DS9; } return null; } public static void main(String[] args) { System.out.println(trek("Captain Picard")); System.out.println(trek("7 of Nine")); System.out.println(trek("Odo")); System.out.println(trek("Quark")); System.out.println(trek("Data").equalsIgnoreCase(TNG));...

what is an array index in java what is a return type in java what is method overloading in java

Complete the isExact Reverse() method in Reverse.java as follows: The method takes two Strings x and y as parameters and returns a boolean. The method determines if the String x is the exact reverse of the String y. If x is the exact reverse of y, the method returns true, otherwise, the method returns false. Other than uncommenting the code, do not modify the main method in Reverse.java. Sample runs provided below. Argument String x "ba" "desserts" "apple" "regal" "war" "pal" Argument String y "stressed" "apple" "lager" "raw" "slap" Return Value false true false true true false

C++ Program #include <iostream>#include <cstdlib>#include <ctime>using namespace std; int getData() { return (rand() % 100);} class Node {public: int data; Node* next;}; class LinkedList{public: LinkedList() { // constructor head = NULL; } ~LinkedList() {}; // destructor void addNode(int val); void addNodeSorted(int val); void displayWithCount(); int size(); void deleteAllNodes(); bool exists(int val);private: Node* head;}; // function to check data exist in a listbool LinkedList::exists(int val){ if (head == NULL) { return false; } else { Node* temp = head; while (temp != NULL) { if(temp->data == val){ return true; } temp = temp->next; } } return false;} // function to delete all data in a listvoid LinkedList::deleteAllNodes(){ if (head == NULL) { cout << "List is empty, No need to delete...

TASK 1. Variables. Review variables, Implement the following code, make sure it runs without errors. Change Summation Integers problem to Finding the minimum problem.

C++ language please

[java program] public class ScenarioAnalysis { // Instance variables privateVehicle[] vehicles; // all vehicless being analyzed privatedoublegasPrice; // price of one gallon of gas in dollars privatedoubleelectricityPrice; // price of 1 kWh in cents of a dollar, c$/kWh publicScenarioAnalysis ( doublegasPrice, doubleelectricityPrice ) { this.gasPrice = gasPrice; this.electricityPrice = electricityPrice; } /* * Updates the price of gas * Call computeCO2EmissionsAndCost() whenever there is an update on gas prices */ publicvoidsetGasPrice ( doublegasPrice ) { this.gasPrice = gasPrice; computeCO2EmissionsAndCost(); } /* * Returns the gas price */ publicdoublegetGasPrice () { returngasPrice; } /* * Updates the price of electricity * Call computeCO2EmissionsAndCost() whenever there is an update on electricity prices */ publicvoidsetElectricityPrice ( doubleelectricityPrice ) { this.electricityPrice = electricityPrice; } /* * Returns electricity price */ publicdoublegetElectricityPrice...