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不知道如果我這樣做的權利，但這是計劃的延續，我在這裏工作... Homework Help PT1作業幫助P t2中（數學Complex類）
我掙扎了很多與這個家庭作業...
**(Math: The Complex class) A complex number is a number in the form a + bi,
where a and b are real numbers and i is 2-1. The numbers a and b are known
as the real part and imaginary part of the complex number, respectively. You can
perform addition, subtraction, multiplication, and division for complex numbers
using the following formulas:
a + bi + c + di = (a + c) + (b + d)i
a + bi - (c + di) = (a - c) + (b - d)i
(a + bi)*(c + di) = (ac - bd) + (bc + ad)i
(a + bi)/(c + di) = (ac + bd)/(c2 + d2) + (bc - ad)i/(c2 + d2)
You can also obtain the absolute value for a complex number using the following
formula:
a + bi = 2a2 + b2
Design a class named Complex for representing complex numbers and the
methods add, subtract, multiply, divide, and abs for performing complexnumber
operations, and override toString method for returning a string representation
for a complex number. The toString method returns (a + bi) as a
string. If b is 0, it simply returns a. Your Complex class should also implement the
Cloneable interface.
Provide three constructors Complex(a, b), Complex(a), and Complex().
Complex() creates a Complex object for number 0 and Complex(a) creates
a Complex object with 0 for b. Also provide the getRealPart() and
getImaginaryPart() methods for returning the real and imaginary part of the
complex number, respectively.
Write a test program that prompts the user to enter two complex numbers and
displays the result of their addition, subtraction, multiplication, division, and absolute
value.**
這是我到目前爲止。兩類...
// ComplexTest.java
import java.util.Scanner;
public class ComplexTest {
public static void main(String[] args) {
Scanner input = new Scanner(System.in);
System.out.println("Enter the first complex number: ");
double realPart = input.nextDouble();
System.out.println("Enter the second complex number: ");
double imaginaryPart = input.nextDouble();
Complex cn1 = new Complex(realPart, imaginaryPart);
Complex cn2 = new Complex(realPart);
Complex cn3 = new Complex();
if (realPart == 0) {
System.out.println(cn3.toString());
}
if (imaginaryPart == 0) {
System.out.println(cn2.toString());
}
if(realPart != 0 && imaginaryPart != 0) {
System.out.println(cn1.toString());
}
}
}
// Complex.java
import java.util.Scanner;
public class Complex {
// cloneable interface
public interface Cloneable { }
// Instance Real + Getters and Setters (Accessors and Mutators)
private double realPart;
public double getReal() {
return realPart;
}
public void setReal(double real) {
this.realPart = real;
}
// Instance Real + Getters and Setters (Accessors and Mutators)
private double imaginaryPart;
public double getImaginary() {
return imaginaryPart;
}
public void setImaginary(double imaginary) {
this.imaginaryPart = imaginary;
}
// Constructor Method CN1
public Complex(double a, double b) {
realPart = a;
imaginaryPart = b;
}
// Constructor Method CN2
public Complex(double a) {
realPart = a;
imaginaryPart = 0;
}
// Constructor Method CN3
public Complex() { }
// Add Complex Numbers
public Complex add(Complex comp1, Complex comp2) {
double real1 = comp1.getReal();
double real2 = comp2.getReal();
double imaginary1 = comp1.getImaginary();
double imaginary2 = comp2.getImaginary();
return new Complex(real1 + real2, imaginary1 + imaginary2);
}
// Subtract Complex Numbers
public Complex subtract(Complex comp1, Complex comp2) {
double real1 = comp1.getReal();
double real2 = comp2.getReal();
double imaginary1 = comp1.getReal();
double imaginary2 = comp2.getReal();
return new Complex(real1 - real2, imaginary1 - imaginary2);
}
// Multiply Complex Numbers
public Complex multiply(Complex comp1, Complex comp2) {
double real1 = comp1.getReal();
double real2 = comp2.getReal();
double imaginary1 = comp1.getReal();
double imaginary2 = comp2.getReal();
return new Complex(real1 * real2, imaginary1 * imaginary2);
}
// Divide Complex Numbers
public Complex divide(Complex comp1, Complex comp2) {
double real1 = comp1.getReal();
double real2 = comp2.getReal();
double imaginary1 = comp1.getReal();
double imaginary2 = comp2.getReal();
return new Complex(real1/real2, imaginary1/imaginary2);
}
// toString to Change Display
public String toString() {
String result;
result = realPart + " + " + imaginaryPart + "i";
return result;
}
}
這裏是簡的幫助後，我更新的代碼。我已經創建了3種方法（減法，乘法和除法）。我不應該在每種方法中使用comp1和comp2，而是將它們分別命名爲？我們的目標是在最後同時打印每種方法的結果。這些有相同的名字會混淆嗎？
我也想知道什麼時候應該實現可複製的接口。
最後，根據文本，複數實際上看起來像是由空格分隔的兩個數字。 （即3.5 5.0而不是僅3.5）。如果我爲這兩個複數的後半部分再添加兩個掃描器輸入，我將不得不更改我的代碼。我需要創建新的獲取者和接受者來接收這個數字嗎？如imaginaryPart2和realPart2？
再次感謝您的所有幫助。