Write a python program to calculate the average of two numbers

WRITE A JAVA PROGRAM TO PRINT THE PATTERN<br> 13579<br> 2468<br> 357<br> 46<br> 5

Inessa05 [86]

Answer:

import java.util.Scanner;

import java.lang.*;

class Main

{

public static void main(String args[])

{

int n;

//For capturing the value of n

Scanner scanner = new Scanner(System.in);

System.out.println("Enter the value of n:");

//The entered value is stored in the var n

n = scanner.nextInt();

int k=1;

printnum(n,k);

}

public static void printnum(int n,int k)

{

if(n%2==0)

{

for(int i=k;i<=n-1;i=i+2)

{

System.out.print(i);

}

System.out.println("");

}

else

{

for(int i=k;i<=n-1;i=i+2)

{

System.out.print(i);

}

System.out.println("");

}

n--;

if(n<=1)

{

System.exit(0);

}

else

{

printnum(n,k+1);

}

Explanation:

The program is self explanatory.

4 0

3 years ago

You create a storyboard at the _____ stage of web development

ddd [48]

Answer:

initial stage of web development.

4 0

3 years ago

Read 2 more answers

What can a person do to help increase their credit score?

sergeinik [125]

The person can keep up their bills and payments and send them off in time. keep your balances low and try to never go into debt. I you do get into debt than pay it off when you get the chance instead of forgetting about it.

4 0

3 years ago

Construct a class that will model a quadratic expression (ax^2 + bx + c). In addition to a constructor creating a quadratic expr

stich3 [128]

Answer:

Following are the code to this question:

#include <iostream>//header file

#include<math.h>//header file

using namespace std;

class Quadratic//defining a class Quadratic

{

private:

double a,b,c;//defining a double variable

public:

Quadratic()//defining default constructor

{

a = 0;//assigning value 0

b = 0;//assigning value 0

c = 0;//assigning value 0

}

Quadratic(double a, double b, double c)//defining a parameterized constructor

{

this->a = a;//use this keyword to hold value in a variable

this->b = b;//use this keyword to hold value in b variable

this->c = c;//use this keyword to hold value in c variable

}

double getA() //defining a get method

{

return a;//return value a

}

void setA(double a)//defining a set method to hold value in parameter

{

this->a = a;//assigning value in a variable

}

double getB() //defining a get method

{

return b;//return value b

}

void setB(double b)//defining a set method to hold value in parameter

{

this->b = b;//assigning value in b variable

}

double getC() //defining a get method

{

return c;//return value c

}

void setC(double c)//defining a set method to hold value in parameter

{

this->c = c;//assigning value in c variable

}

double Evaluate(double x)//defining a method Evaluate to hold value in parameter

{

return ((a*x*x)+(b*x)+c);//return evaluated value

}

double numberOfReal()//defining a method numberOfReal to calculates the real roots

{

return (b*b)-(4*a*c);//return real roots

}

void findroots()//defining a method findroots

{

double d=numberOfReal();//defining double variable to hold numberOfReal method value

if(d<0)//use if block to check value of d less than 0

cout<<"Equation has no real roots"<<endl;//print message

else

{

double r1=(-b+sqrt(numberOfReal()))/(2*a);//holding root value r1

double r2=(-b-sqrt(numberOfReal()))/(2*a);//holding root value r2

if(r1==r2)//defining if block to check r1 equal to r2

cout<<"Equation has one real root that is "<<r1<<endl;//print message with value

else//else block

cout<<"The equation has two real roots that are "<<r1<<" and "<<r2<<endl;////print message with value

}

void print()//defining a method print

{

cout<< a << "x^2 + " << b << "x + " << c <<endl;//print Quadratic equation

}

};

int main()//defining main method

{

Quadratic q(5,6,1);//creating Quadratic class object that calls parameterized constructor

q.print();//calling print method

cout<<q.numberOfReal()<<endl;//calling method numberOfReal that prints its value

q.findroots();//calling method findroots

cout<<q.Evaluate(-1);//calling method Evaluate that prints its value

return 0;

}

Output:

5x^2 + 6x + 1

16

The equation has two real roots that are -0.2 and -1

0

Explanation:

In the above code, a class "Quadratic" is declared, which is used to define a default and parameter constructor to holds its parameter value.

In the next step, the get and set method is defined that holds and returns the quadratic value, and "Evaluate, numberOfReal, findroots, and print" in the evaluate method a double variable is used as a parameter that returns evaluated value.

In the "numberOfReal" method it calculates the real roots and returns its value. In the "findroots" method a double variable "d" is declared that hold "numberOfReal" value,

and use a conditional statement to check its value, and in the print method, it prints the quadratic equation.

In the main method, the lass object it calls the parameterized constructor and other methods.

5 0

3 years ago

For this lab you will write a class to create a user-defined type called Shapes to represent different shapes, their perimeters

maw [93]

<h2>Answer:</h2>

<u />

========= Shape.java ===========

//import the Scanner class

import java.util.Scanner;

public class Shape{

//required fields

private String shape;

private double area;

private double perimeter;

//default constructor

public Shape(){

this.shape = "unknown";

this.area = 0.0;

this.perimeter = 0.0;

}

//constructor with one parameter

public Shape(String shape){

this.setShape(shape);

this.area = 0.0;

this.perimeter = 0.0;

}

//accessors and mutators

public void setShape(String shape){

this.shape = shape;

}

public String getShape(){

return this.shape;

}

public double getPerimeter(){

return this.perimeter;

}

public double getArea(){

return this.area;

}

public void setPerimeter(Scanner scr){

if(this.getShape().equals("circle")){

System.out.println("Enter the radius of the circle");

double radius = scr.nextDouble();

this.perimeter = 2 * 3.142 * radius;

}

else if(this.getShape().equals("rectangle")){

System.out.println("Enter the width");

double width = scr.nextDouble();

System.out.println("Enter the height");

double height = scr.nextDouble();

this.perimeter = 2 * (width + height);

}

else if(this.getShape().equals("square")){

System.out.println("Enter the height or width");

double height = scr.nextDouble();

this.perimeter = 4 * height;

}

else if(this.getShape().equals("unknown")){

System.out.println("You must define a shape first before calculating perimeter");

this.perimeter = 0.0;

}

else {

System.out.println("You must define a shape first before calculating perimeter");

this.perimeter = 0.0;

}

public void setArea(Scanner scr){

if(this.getShape().equals("circle")){

System.out.println("Enter the radius of the circle");

double radius = scr.nextDouble();

this.area = 3.142 * radius * radius;

}

else if(this.getShape().equals("rectangle")){

System.out.println("Enter the width");

double width = scr.nextDouble();

System.out.println("Enter the height");

double height = scr.nextDouble();

this.area = width * height;

}

else if(this.getShape().equals("square")){

System.out.println("Enter the height or width");

double height = scr.nextDouble();

this.area = height * height;

}

else if(this.getShape().equals("unknown")){

System.out.println("You must define a shape first before calculating area");

this.area = 0.0;

}

else {

System.out.println("You must define a shape first before calculating area");

this.area = 0.0;

}

//Own methods

//1. Method to show the properties of a shape

public void showProperties(){

System.out.println();

System.out.println("The properties of the shape are");

System.out.println("Shape : " + this.getShape());

System.out.println("Perimeter : " + this.getPerimeter());

System.out.println("Area : " + this.getArea());

}

//2. Method to find and show the difference between the area and perimeter of a shape

public void getDifference(){

double diff = this.getArea() - this.getPerimeter();

System.out.println();

System.out.println("The difference is " + diff);

}

========= ShapeTest.java ===========

import java.util.Scanner;

public class ShapeTest {

public static void main(String [] args){

Scanner scanner = new Scanner(System.in);

// create an unknown shape

Shape shape_unknown = new Shape();

//get the shape

System.out.println("The shape is " + shape_unknown.getShape());

//set the area

shape_unknown.setArea(scanner);

//get the area

System.out.println("The area is " + shape_unknown.getArea());

//set the perimeter

shape_unknown.setPerimeter(scanner);

//get the perimeter

System.out.println("The perimeter is " + shape_unknown.getPerimeter());

// create another shape - circle

Shape shape_circle = new Shape("circle");

//set the area

shape_circle.setArea(scanner);

//get the area

System.out.println("The area is " + shape_circle.getArea());

//set the perimeter

shape_circle.setPerimeter(scanner);

//get the area

System.out.println("The perimeter is " + shape_circle.getArea());

//get the properties

shape_circle.showProperties();

//get the difference between area and perimeter

shape_circle.getDifference();

}

<h2>Sample output:</h2>

The shape is unknown

You must define a shape first before calculating area

The area is 0.0

You must define a shape first before calculating perimeter

The perimeter is 0.0

Enter the radius of the circle

>> 12

The area is 452.448

Enter the radius of the circle

>> 12

The perimeter is 452.448

The properties of the shape are

Shape : circle

Perimeter : 75.408

Area : 452.448

The difference is 377.03999999999996

<h2>Explanation:</h2>

The code above is written in Java. It contains comments explaining important parts of the code. Please go through the code for more explanations. For better formatting, the sample output together with the code files have also been attached to this response.

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5 0

3 years ago

Write a python program to calculate the average of two numbers​

Write a python program to calculate the average of two numbers