Coding Saviour: November 2022

Monday, 21 November 2022

Inheritance Exercise 1 - infosys

class Camera {
    private String brand;
    private double cost;

    public Camera() {
        this.brand = "Nikon";
    }
    public Camera(String brand,double cost){
    this.brand=brand;
    this.cost=cost;
    }
    public String getBrand() {
        return brand;
    }
    public void setBrand(String brand) {
        this.brand = brand;
    }
    public double getCost() {
        return cost;
    }
    public void setCost(double cost) {
        this.cost = cost;
    }
}

class DigitalCamera extends Camera {
    private int memory;

    public DigitalCamera(String brand, double cost) {
    
        super(brand,cost);
        this.memory = 16;
    }
    
    public int getMemory() {
        return memory;
    }
    public void setMemory(int memory) {
        this.memory = memory;
    }
}

class Tester {
    public static void main(String[] args) {
        DigitalCamera camera = new DigitalCamera("Canon",100);
        System.out.println(camera.getBrand()+" "+camera.getCost()+" "+camera.getMemory());
    }
}

                        

Sunday, 20 November 2022

Association - Exercise 1

You need to develop an application for cab service providers by implementing the classes based on the class diagram and description given below. Note: Driver class is provided to you. Method Description CabServiceProvider CabServiceProvider(String cabServiceName, int totalCabs) Initialize all the instance variables appropriately with the values passed to the constructor. calculateRewardPrice(Driver driver) Calculate and return the bonus of the driver based on the below table. If averageRating of the driver is less than 4, return the bonus as 0. In case of any invalid value, return the bonus as 0. Note: Round off the bonus to 2 decimal digits. Implement the appropriate getter and setter methods. Perform case-sensitive comparison wherever applicable. Test the functionalities using the provided Tester class. Sample Input and Output Input For CabServiceProvider object cabServiceProvider1 with cabServiceName = Halo and totalCabs = 50 Driver object - driver1 Driver object - driver2 Driver object - driver3 Output,coding savior,infosys assignment quiz and lex genrric ansewer,infosys generic java program, code answer,code saviour,code monk,coding bar,code solution for infosys assignmenet,code saviour trend

class CabServiceProvider{
private static final String String=null;
private String cabServiceName;
private int totalCabs;
public CabServiceProvider(String cabServiceName,int totalCabs){
this.cabServiceName=cabServiceName;
this.totalCabs=totalCabs;
}
public String getCabServiceName(){
return cabServiceName;
}
public void setCabServiceName(String cabServiceName){
this.cabServiceName=cabServiceName;
}
public int getTotalCabs(){
return totalCabs;
}
public  void setTotalCabs(int totalCabs){
this.totalCabs=totalCabs;
}
public double calculateRewardPrice(Driver driver){
double bonus=0.0;
double rewardAmount=0.0;
if(cabServiceName.equals("Halo")){
if(driver.getAverageRating()>=4.5&&driver.getAverageRating()<=5){
rewardAmount=10*driver.getAverageRating();
}
else if(driver.getAverageRating()>=4&&driver.getAverageRating()<4.5){
rewardAmount=5*driver.getAverageRating();
}
else{
rewardAmount=0.0;
}
}
else if(cabServiceName.equals("Aber")){
if(driver.getAverageRating()>=4.5&&driver.getAverageRating()<=5){
rewardAmount=8*driver.getAverageRating();
}
else if(driver.getAverageRating()>=4&&driver.getAverageRating()<4.5){
rewardAmount=3*driver.getAverageRating();
}
else{
rewardAmount=0.0;
}
}
else{
rewardAmount=0.0;
}
bonus=Math.round(rewardAmount*100.0)/100.0;
return bonus;
}
}

class Driver {
    
    private String driverName;
    private float averageRating;
    
    public Driver(String driverName, float averageRating){
        this.driverName=driverName;
        this.averageRating=averageRating;
    }
    
    public String getDriverName(){
        return this.driverName;
    }
    
    public void setDriverName(String driverName){
        this.driverName=driverName;
    }
    
    public float getAverageRating(){
        return this.averageRating;
    }
    
    public void setAverageRating(float averageRating){
        this.averageRating=averageRating;
    }

    //DO NOT MODIFY THE METHOD
    //Your exercise might not be verified if the below method is modified
    public String toString(){
        return "Driver\ndriverName: "+this.driverName+"\naverageRating: "+this.averageRating;
    }
}

class Tester {
    
    public static void main(String args[]){
        CabServiceProvider cabServiceProvider1 = new CabServiceProvider("Halo", 50);

        Driver driver1 = new Driver("Luke", 4.8f);
        Driver driver2 = new Driver("Mark", 4.2f);
        Driver driver3 = new Driver("David", 3.9f);
        
        Driver[] driversList = { driver1, driver2, driver3 };
        for (Driver driver : driversList) {
            System.out.println("Driver Name: "+driver.getDriverName());
            double bonus = cabServiceProvider1.calculateRewardPrice(driver);
            if (bonus>0)
                System.out.println("Bonus: $"+bonus+"\n");
            else
                System.out.println("Sorry, bonus is not available!");
        }
        
        //Create more objects of CabServiceProvider and Driver classes for testing your code
    }
}

Static - Exercise 1 infosys

Static - Exercise 1

coding savior,infosys assignment quiz and lex genrric ansewer,infosys generic java program, code answer,code saviour,code monk,coding bar,code solution for infosys assignmenet,code saviour trend , Implement the class Bill based on the class diagram and description given below. Method Description Bill(String paymentMode) Initialize the paymentMode instance variable with the value passed to the parameter. Generate the billId using counter. The value of billId should start from 'B9001' and the numerical part should be incremented by 1 for the subsequent values. Initialize the counter in static block. Implement the appropriate getter and setter methods. Test the functionalities using the provided Tester class. Create two or more Bill objects and validate that the billId is being generated properly. Sample Input and Output For constructor Input For first Bill object For second Bill object Output

class Bill{
private static int counter;
private String billId;
private String paymentMode;
static{
counter=9000;
}
public Bill(String paymentMode){
this.paymentMode=paymentMode;
billId="B"+ ++counter;
}
public static int getCounter(){
return counter;
}
public String getBillId(){
return billId;
}
public  void setBillId(String billId){
this.billId=billId;
}
public String getPaymentMode(){
return paymentMode;
}
public void setPaymentMode(String paymentMode){
this.paymentMode=paymentMode;
}

}

class Tester {
    public static void main(String[] args) {

        Bill bill1 = new Bill("DebitCard");
        Bill bill2 = new Bill("PayPal");
        Bill bill3=new Bill("CreditCard");
        Bill bill4=new Bill("PayTm");
        Bill bill5=new Bill("GooglePay");
        
        //Create more objects and add them to the bills array for testing your code
              
        Bill[] bills = { bill1, bill2, bill3, bill4, bill5};
              
        for (Bill bill : bills) {
            System.out.println("Bill Details");
            System.out.println("Bill Id: " + bill.getBillId());
            System.out.println("Payment method: " + bill.getPaymentMode());
            System.out.println();
       }
    }
}

Association - Exercise 1

class CabServiceProvider{
private static final String String=null;
private String cabServiceName;
private int totalCabs;
public CabServiceProvider(String cabServiceName,int totalCabs){
this.cabServiceName=cabServiceName;
this.totalCabs=totalCabs;
}
public String getCabServiceName(){
return cabServiceName;
}
public void setCabServiceName(String cabServiceName){
this.cabServiceName=cabServiceName;
}
public int getTotalCabs(){
return totalCabs;
}
public  void setTotalCabs(int totalCabs){
this.totalCabs=totalCabs;
}
public double calculateRewardPrice(Driver driver){
double bonus=0.0;
double rewardAmount=0.0;
if(cabServiceName.equals("Halo")){
if(driver.getAverageRating()>=4.5&&driver.getAverageRating()<=5){
rewardAmount=10*driver.getAverageRating();
}
else if(driver.getAverageRating()>=4&&driver.getAverageRating()<4.5){
rewardAmount=5*driver.getAverageRating();
}
else{
rewardAmount=0.0;
}
}
else if(cabServiceName.equals("Aber")){
if(driver.getAverageRating()>=4.5&&driver.getAverageRating()<=5){
rewardAmount=8*driver.getAverageRating();
}
else if(driver.getAverageRating()>=4&&driver.getAverageRating()<4.5){
rewardAmount=3*driver.getAverageRating();
}
else{
rewardAmount=0.0;
}
}
else{
rewardAmount=0.0;
}
bonus=Math.round(rewardAmount*100.0)/100.0;
return bonus;
}
}

class Driver {
    
    private String driverName;
    private float averageRating;
    
    public Driver(String driverName, float averageRating){
        this.driverName=driverName;
        this.averageRating=averageRating;
    }
    
    public String getDriverName(){
        return this.driverName;
    }
    
    public void setDriverName(String driverName){
        this.driverName=driverName;
    }
    
    public float getAverageRating(){
        return this.averageRating;
    }
    
    public void setAverageRating(float averageRating){
        this.averageRating=averageRating;
    }

    //DO NOT MODIFY THE METHOD
    //Your exercise might not be verified if the below method is modified
    public String toString(){
        return "Driver\ndriverName: "+this.driverName+"\naverageRating: "+this.averageRating;
    }
}

class Tester {
    
    public static void main(String args[]){
        CabServiceProvider cabServiceProvider1 = new CabServiceProvider("Halo", 50);

        Driver driver1 = new Driver("Luke", 4.8f);
        Driver driver2 = new Driver("Mark", 4.2f);
        Driver driver3 = new Driver("David", 3.9f);
        
        Driver[] driversList = { driver1, driver2, driver3 };
        for (Driver driver : driversList) {
            System.out.println("Driver Name: "+driver.getDriverName());
            double bonus = cabServiceProvider1.calculateRewardPrice(driver);
            if (bonus>0)
                System.out.println("Bonus: $"+bonus+"\n");
            else
                System.out.println("Sorry, bonus is not available!");
        }
        
        //Create more objects of CabServiceProvider and Driver classes for testing your code
    }
}

Array - Exercise 1 , Calculate and return the sum of all the even numbers present in the numbers array passed to the method calculateSumOfEvenNumbers. Test the functionalities using the main() method of the Tester class.

Array - Exercise 1

Calculate and return the sum of all the even numbers present in the numbers array passed to the method calculateSumOfEvenNumbers. Implement the logic inside calculateSumOfEvenNumbers() method. Test the functionalities using the main() method of the Tester class. Sample Input and Output

class Tester{
public static int calculateSumOfEvenNumbers(int[]numbers){
int sum=0;
for(int i=0;i<numbers.length;i++)
{
int a=numbers[i]%2;
if(a==0)
{
sum=sum+numbers[i];
}
}
returnsum;
}
public static void main(String[]args){
int[]numbers={68,79,86,99,23,2,41,100};
System.out.println("Sum of even numbers: "+calculateSumOfEvenNumbers(numbers));
}
}

String - Exercise 1

String - Exercise 1

Complete the removeWhiteSpaces() method given in the Tester class.

Method Description

removeWhiteSpaces(String str)

Remove all the white spaces from the string passed to the method and return the modified string.

Test the functionalities using the main() method of the Tester class.

Sample Input and Output

class Tester{

public static String removeWhiteSpaces(String str){
String noSpaceStr=str.replaceAll("\\s","");//usingbuiltinmethod
//Implementyourcodehereandchangethereturnvalueaccordingly
return noSpaceStr;
    }
    
    public static void main(String args[]){
        String str = "Hello   How are you   ";
        str = removeWhiteSpaces(str);
        System.out.println(str);
    }
}

Encapsulation - Exercise 1

Problem Statement

Consider the class Employee given below for representing employees of an organization. It has 5 different instance variables and a method to calculate the total salary based on the jobLevel.

Salary is calculated in the calculateSalary() method.

Make necessary changes to the class by making all the attributes private and by adding necessary accessor and mutator methods thus bringing in Encapsulation.

class Employee {

 String employeeId;
 String employeeName;
 int salary;
 int bonus;
int jobLevel;
public String getEmployeeId(){
return employeeId;
}
public void setEmployeeId(String employeeId){
this.employeeId=employeeId;
}
public String getEmployeeName(){
return employeeName;
}
public void setEmployeeName(String employeeName){
this.employeeName=employeeName;
}
public int getSalary(){
return salary;
}
public void setSalary(int salary){
this.salary=salary;
}
public int getBonus(){
return bonus;
}
public void setBonus(int bonus){
this.bonus=bonus;
}
public int getJobLevel(){
return jobLevel;
}
public void setJobLevel(int jobLevel){
this.jobLevel=jobLevel;
}

    public void calculateSalary() {
        if (this.jobLevel >= 4) {
            this.bonus = 100;
        } else {
            this.bonus = 50;
        }
        this.salary += this.bonus;
    }
}

class Tester {

    public static void main(String args[]) {

        Employee employee = new Employee();
        employee.employeeId = "C101";
        employee.employeeName = "Steve";
        employee.salary = 650;
        employee.jobLevel = 4;

        employee.calculateSalary();

        System.out.println("Employee Details");
        System.out.println("Employee Id: " + employee.employeeId);
        System.out.println("Employee Name: " + employee.employeeName);
        System.out.println("Salary: " + employee.salary);

    }
}

Saturday, 19 November 2022

Methods - Assignment 3

Implement a class Calculator with the instance variable and method mentioned below.

Method Description

sumOfDigits()

Calculate and return the sum of the digits of the num member variable

Test the functionalities using the provided Tester class.

Sample Input and Output

class Calculator{
public int num;
public int sumOfDigits()
{
int a=num,rem=0,sum=0;
while(a!=0)
{
rem=a%10;
a=a/10;
sum=sum+rem;
}
return sum;
}
}
class Tester{
public static void main(String args[]){
     Calculator calculator=new Calculator();
calculator.num=123;
int x=calculator.sumOfDigits();
System.out.println(x);
//AssignavaluetothemembervariablenumofCalculatorclass//InvokethemethodsumOfDigitsofCalculatorclassanddisplaytheoutput}
}
}

Methods - Exercise 1

Methods - Exercise 1

Implement a class Calculator with the method mentioned below.

Method Description

findAverage()

Calculate the average of three numbers
Return the average rounded off to two decimal digits

Test the functionalities using the provided Tester class.

Sample Input and Output

Hint: For round-off to two decimal digits:

double num1 = 65, num2 = 175;
double num3 = num1/num2;
System.out.println(Math.round(num3*100.0)/100.0);

class Calculator{
public double findAverage(int number1,int number2,int number3){
double sum=(number1+number2+number3);
double average=sum/3;
double roundoff=Math.round(average*100.0)/100.0;
return roundoff;
}
}
class Tester{
public static void main(String args[]){
Calculator calculator= new Calculator();
double x=calculator.findAverage(12,8,15);
System.out.println(x);
//InvokethemethodfindAverageoftheCalculatorclassanddisplaytheaverage}
}
}

Coding Saviour

Monday, 21 November 2022

Inheritance Exercise 1 - infosys

Sunday, 20 November 2022

Association - Exercise 1

Static - Exercise 1 infosys

Association - Exercise 1

Array - Exercise 1 , Calculate and return the sum of all the even numbers present in the numbers array passed to the method calculateSumOfEvenNumbers. Test the functionalities using the main() method of the Tester class.

String - Exercise 1

Encapsulation - Exercise 1

Saturday, 19 November 2022

Methods - Assignment 3

Methods - Assignment 3

Methods - Exercise 1

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