Can somebody help me

Question

You are working on a graphical app, which includes multiple different shapes.
The given code declares a base Shape class with an abstract area() method and a width attribute.
You need to create two Shape subclasses, Square and Circle, which initialize the width attribute using their constructor, and define their area() methods.
The area() for the Square class should output the area of the square (the square of the width), while for the Circle, it should output the area of the given circle (PI*width*width).
The code in main creates two objects with the given user input and calls the area() methods.

Sample Input:
5
2

Sample Output:
25
12.566370614359172

The area of the square is 5*5=25, while the area of the circle is PI*2*2=12.566370614359172

https://code.sololearn.com/c379tkGDnY4P/?ref=app

Answer 1

Hello. I solved it. Here it is:

class Square extends Shape {
Square(int x) {
this.width = x;
}
void area() {
//return x * x;
System.out.println(width * width);
}
}

class Circle extends Shape {
Circle(int y){
this.width = y;
}

public void area(){
System.out.println(Math.PI*width*width);
}
}

Answer 2

import java.util.Scanner;

abstract class Shape {
int width;
abstract void area();
}
//your code goes here
class Square extends Shape {
public Square(int w){
width = w;
}
public void area(){
width = width*width;
System.out.println(width);
}
}

class Circle extends Shape {
public Circle(int w){
width = w;
}
public void area() {
double areaCircle = (double)Math.PI*(int)width*(int)width;
System.out.println(areaCircle);
}
}

public class Program {
public static void main(String[ ] args) {
Scanner sc = new Scanner(System.in);
int x = sc.nextInt();
int y = sc.nextInt();

Square a = new Square(x);
Circle b = new Circle(y);
a.area();
b.area();
}
}

Answer 3

class Square extends Shape {
Square(int x) {
width = x;
}
void area() {
System.out.println(width * width);
}
}

class Circle extends Shape {
Circle(int y){
width = y;
}

public void area(){
System.out.println(Math.PI*width*width);
}
}

it's really worked

Answer 4

//vote me, my code is work

import java.util.Scanner;

abstract class Shape {
int width;
abstract void area();
}
//your code goes here
class Square extends Shape{
Square(int x){
this.width = x;
}
@Override
public void area(){
System.out.println(width * width);
}
}

class Circle extends Shape{
Circle(int y){
this.width = y;
}

@Override
public void area(){
System.out.println(Math.PI * width * width);
}
}

public class Main {
public static void main(String[ ] args) {
Scanner sc = new Scanner(System.in);
int x = sc.nextInt();
int y = sc.nextInt();
sc.close();

Square a = new Square(x);
Circle b = new Circle(y);
a.area();
b.area();
}
}

Answer 5

This is working!

import java.util.Scanner;

abstract class Shape {
int width;
abstract void area();
}
//your code goes here
class Square extends Shape {
public Square(int w){
width = w;
}
public void area(){
width = width*width;
System.out.println(width);
}
}

class Circle extends Shape {
public Circle(int w){
width = w;
}
public void area() {
double areaCircle = (double)Math.PI*(int)width*(int)width;
System.out.println(areaCircle);
}
}

public class Program {
public static void main(String[ ] args) {
Scanner sc = new Scanner(System.in);
int x = sc.nextInt();
int y = sc.nextInt();

Square a = new Square(x);
Circle b = new Circle(y);
a.area();
b.area();
}
}

Answer 6

import java.util.Scanner;
//Please Subscribe to My Youtube Channel
//Channel Name: Fazal Tuts4U
abstract class Shape {
int width;
abstract void area();
}
class Square extends Shape{

public Square(int x) {
this.width = x;
}

@Override
void area() {
width = width*width;
System.out.println(width);
}
}
class Circle extends Shape{

public Circle(int y) {
this.width = y;
}

@Override
void area() {
double areaCircle = (double)Math.PI*(int)width*(int)width;
System.out.println(areaCircle);
}
}
public class Program {
public static void main(String[ ] args) {
Scanner sc = new Scanner(System.in);
int x = sc.nextInt();
int y = sc.nextInt();
Square a = new Square(x);
Circle b = new Circle(y);
a.area();
b.area();
}
}

Answer 7

import java.util.Scanner;

abstract class Shape {
int width;
abstract void area();
}
//your code goes here
class Square extends Shape {
public Square(int w){
width = w;
}
public void area(){
width = width*width;
System.out.println(width);
}
}

class Circle extends Shape {
public Circle(int w){
width = w;
}
public void area() {
double areaCircle = (double)Math.PI*(int)width*(int)width;
System.out.println(areaCircle);
}
}

public class Program {
public static void main(String[ ] args) {
Scanner sc = new Scanner(System.in);
int x = sc.nextInt();
int y = sc.nextInt();

Square a = new Square(x);
Circle b = new Circle(y);
a.area();
b.area();
}
}

Good Luck

Answer 8

/*w and wi is very important to initialize*/

import java.util.Scanner;

abstract class Shape {
int wi,w;
abstract void area();
}
//your code goes here
class Circle extends Shape{
Circle(int a){
w = a;
}
void area(){
System.out.println(Math.PI*w*w);
}
}
class Square extends Shape{
Square(int b){
wi = b;
}
void area(){
System.out.println(wi*wi);
}
}
public class Program {
public static void main(String[ ] args) {
Scanner sc = new Scanner(System.in);
int x = sc.nextInt();
int y = sc.nextInt();

Square a = new Square(x);
Circle b = new Circle(y);
a.area();
b.area();
}
}

Answer 9

#include <iostream>
using namespace std;

class Number
{
private:
int num;
public:
Number(int n) {
num = n;
}
//complete the method
int square() const{
int n = num;
n*=n;
return n;
};
};

int main() {
int x;
cin >> x;
const Number myNum(x);
cout << myNum.square();
}

Good Luck

Answer 10

It's working
import java.util.Scanner;

public abstract class Shape {
abstract void area(int width);
}

public class Square extends Shape {
void area(int width) {
System.out.println(width * width);
}
}

public class Circle extends Shape {

void area(int width) {
System.out.println(Math.PI * width * width);
}
}

public class Program {

public static void main(String[] args) {
// TODO Auto-generated method stub

Scanner sc = new Scanner(System.in);

int x = sc.nextInt();
int y = sc.nextInt();

Shape a = new Square();
Shape b = new Circle();

a.area(x);
b.area(y);
}
}

Answer 11

Adama Diaby im trying to learn java and im at the section "more in classes" and at the end you have to complete a Project, in this case im doing "Shape". When you think you have complete it you can run it and it shows you if you have done well showing some of the possibile solutions. But not all the solutions are shown because you can print them and complete it without learning the lessons. So i dont know were im doing wrong

Answer 12

This project test cases had given me a migraine

Answer 13

Panos thank you so much!

Answer 14

import java.util.Scanner;

abstract class Shape {
int width;
abstract void area();
}
//your code goes here
class Square extends Shape{
Square(int x){
this.width = x;
}
@Override
public void area(){
System.out.println(width * width);
}
}

class Circle extends Shape{
Circle(int y){
this.width = y;
}

@Override
public void area(){
System.out.println(Math.PI * width * width);
}
}

public class Main {
public static void main(String[ ] args) {
Scanner sc = new Scanner(System.in);
int x = sc.nextInt();
int y = sc.nextInt();
sc.close();

Square a = new Square(x);
Circle b = new Circle(y);
a.area();
b.area();
}
}

Answer 15

import java.util.Scanner;

abstract class Shape {
int width;
abstract void area();
}
//your code goes here
class Square extends Shape {
public Square(int w){
width = w;
}
public void area(){
width = width*width;
System.out.println(width);
}
}

class Circle extends Shape {
public Circle(int w){
width = w;
}
public void area() {
double areaCircle = (double)Math.PI*(int)width*(int)width;
System.out.println(areaCircle);
}
}

public class Program {
public static void main(String[ ] args) {
Scanner sc = new Scanner(System.in);
int x = sc.nextInt();
int y = sc.nextInt();

Square a = new Square(x);
Circle b = new Circle(y);
a.area();
b.area();
}
}

Answer 16

import java.util.Scanner;

abstract class Shape {
int width;
abstract void area();
}
//your code goes here
class Square extends Shape {
public Square(int w){
width = w;
}
public void area(){
width = width*width;
System.out.println(width);
}
}

class Circle extends Shape {
public Circle(int w){
width = w;
}
public void area() {
double areaCircle = (double)Math.PI*(int)width*(int)width;
System.out.println(areaCircle);
}
}

public class Program {
public static void main(String[ ] args) {
Scanner sc = new Scanner(System.in);
int x = sc.nextInt();
int y = sc.nextInt();

Square a = new Square(x);
Circle b = new Circle(y);
a.area();
b.area();
}
}

Worked :)

Answer 17

class Square extends Shape {
Square(int x) {
width = x;
}
void area() {
System.out.println(width * width);
}
}

class Circle extends Shape {
Circle(int y){
width = y;
}

public void area(){
System.out.println(Math.PI*width*width);
}
}

Answer 18

#trythis

import java.util.Scanner;

abstract class Shape {
int width;
abstract void area();
}
//your code goes here
class Square extends Shape {
public Square(int w){
width = w;
}
public void area(){
width = width*width;
System.out.println(width);
}
}

class Circle extends Shape {
public Circle(int w){
width = w;
}
public void area() {
double areaCircle = (double)Math.PI*(int)width*(int)width;
System.out.println(areaCircle);
}
}

public class Program {
public static void main(String[ ] args) {
Scanner sc = new Scanner(System.in);
int x = sc.nextInt();
int y = sc.nextInt();

Square a = new Square(x);
Circle b = new Circle(y);
a.area();
b.area();
}
}

Answer 19

import java.util.Scanner;

abstract class Shape {
int width;
abstract void area();
}
//your code goes here
class Square extends Shape {
public Square(int w){
width = w;
}
public void area(){
width = width*width;
System.out.println(width);
}
}

class Circle extends Shape {
public Circle(int w){
width = w;
}
public void area() {
double areaCircle = (double)Math.PI*(int)width*(int)width;
System.out.println(areaCircle);
}
}

public class Program {
public static void main(String[ ] args) {
Scanner sc = new Scanner(System.in);
int x = sc.nextInt();
int y = sc.nextInt();

Square a = new Square(x);
Circle b = new Circle(y);
a.area();
b.area();
}
}

Answer 20

class Shape:
def __init__(self, width, height):
self.width = width
self.height = height

@staticmethod
def area(self):
return self.width * self.height

w = int(input())
h = int(input())

s = Shape(w, h)
print(Shape.area(s))