IsSquare Method

**Mounir** · October 14th, 2017, 08:09 AM

HI

I have this question :

Suppose we have a Rectangle class that begins:

class Rectangle {

private Point upperLeft; // the upper left corner point
private double height; // the height of the rectangle
private double width; // the width of the rectangle
isSquare method

Write an isSquare method that returns true if the rectangle is a square (and false otherwise).

I have wrote this code but it doesnt work....

package assignement01;

import java.awt.Point;
import java.util.Scanner;

public class Assignement01 {

public static void main(String[] args) {
// TODO code application logic here

Scanner x = new Scanner(System.in);
System.out.print("Enter Rectangle height: ");
double height = x.nextDouble();
System.out.print("Enter Rectangle width: ");
double width = x.nextDouble();

class Rectangle {

private Point upperLeft; // the upper left corner point
private double height; // the height of the rectangle
private double width; // the width of the rectangle

public boolean isSquare() {
if (height == width){
boolean answer = true;
System.out.println(" The answer is" + answer);
}
else{
boolean answer = false;
System.out.println(" The answer is" + answer);

}
}
}
}
}

**John Joe** · October 15th, 2017, 07:25 AM

There are few errors in your code:
1. No need to declare two classes. One classes have enough.
2. isSquare method will not get called as you are not defining it.

**Mounir** · October 15th, 2017, 08:39 AM

Hi

Thanks for youre help.

The thing is that if it was me, i wouldnt add the first class, but as said on the subject we wave to use the rectangle class otherwise it will be wrong.

2. how do i call de isSquare method then ?

Many Thanks

**John Joe** · October 15th, 2017, 08:27 PM

Try this

public class Rectangle {
 
    private Point upperLeft; // the upper left corner point
    private double height; // the height of the rectangle
    private double width; // the width of the rectangle
 
    public static void main(String[] args) {
// TODO code application logic here
        Rectangle r = new Rectangle();
        Scanner x = new Scanner(System.in);
        System.out.print("Enter Rectangle height: ");
        double height = x.nextDouble();
        System.out.print("Enter Rectangle width: ");
        double width = x.nextDouble();
        r.isSquare(height, width); // call method
    }
 
    public boolean isSquare(double height,double width) {
        boolean answer;
        if (height == width) {
             answer = true;
            System.out.println(" The answer is" + answer);
        } else {
             answer = false;
            System.out.println(" The answer is" + answer);
        }
        return answer;
    }
}

**Mounir** · October 15th, 2017, 11:34 PM

Yes it work ! I've seen were was my mistake ! Thanks a lot

**John Joe** · October 16th, 2017, 12:35 AM

You're welcome

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