Question

Write a class called "Complex". The class has two private data members which correspond to the real and imaginary parts of a complex number. .The class Complex should have several (methods) functions: set the values, display the number in real/imaginary (re + j*im) format, and display the number in polar (r, theta) format. The main program should declare two objects of type Complex. It should set the first object to 3 +j2.5 and the second object to 2.7-j6.8. The program should set object 1 to the difference of object 1 and object 2. That is, the real component of object 1 should be set to objectl.re - object2.re and similarly for the imaginary part of object 2. You should use a method like subtract0 or minus0. . The main program should then print object 2 in a polar format (with theta in degrees) and object 1 in Cartesian format. Good programming design is to make your objects and methods general in order to be used in multiple contexts. Thus, write your code so that the printin0 statements are in the main0 module and it calls method(s) for objectl and object2 to access the data. Output: MM&MThe complex numbers are: MM Mobject 2: length 7.316419889536138 th- 68.34401096157751 MM& Mobject 1:0.2999999999999998 + 9.3j

Answer 1

Here is the completed code for this problem. Comments are included, go through it, learn how things work and let me know if you have any doubts or if you need anything to change.If you are satisfied with the solution, please rate the answer.Thanks 

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public class Complex {

    final private double x, y;

    public Complex(double x, double y) {
        this.x = x;
        this.y = y;
    }

    public Complex minus(Complex z) {
        return new Complex(x - z.x, y - z.y);
    }

    public String toString() {

        if (y == 0) {
            return "" + x;
        }
        if (y > 0) {
            return "" + x + " + " + y+"j";
        }
        // otherwise y<0.
        return "" + x + " - " + (-y)+"j";
    }

    public double getX() {
        return x;
    }

    public double getY() {
        return y;
    }

    public void displayInPolar() {
        // calculate radius
        double radius = Math.sqrt(x * x + y * y);
        // convert from radian to degrees
        double degrees = Math.asin(y / radius)*57.2958;
        System.out.println("Length = " + radius + " th = " + degrees);

    }

    public static void main(String[] args) {

        Complex object1 = new Complex(3,2.5);
        Complex object2 = new Complex(2.7,-6.8);
        System.out.println(object1);
        System.out.println(object2);
        object2.displayInPolar();
        System.out.println(object1.minus(object2));


    }
}

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eComplex.java public double getY) return y; 34 35 36 37 38 39 4 0 41 public void displayInPolar[ // calculate radius double radius -Math.sqrt(x * x+ y* y): // convert from radian to degrees double degrees = Math, asin (y / radius )*57.2958; System.out.println(" Length-"radius +"th-"+ degrees); 43 public static void main (String[] args) [ 45 46 47 4 8 49 Complex objectl-new Complex (Xc 3, y: 2.5) Complex object2 new Complex ( x: 2.7, y: -6.8); System.out.println(objectl) System.out.println(object2) object2.displayInPolar System.out.println (objectl.minus (object2)) 52 5.3 의 Run: Complex "C:\Program FileslJavaljdk-11binljava.exe" "-javaagent:C:\Program Files\JetE 3.02.5j Length 7.316419889536138 th =-68.34403539894686 0.2999999999999998 + 9.3j Process finished with exit code 0

thanks a lot !