根据第144页第5-12题的要求定义类并编写字符界面的Java Application程序,输入两个复数的实部和虚部,输出两个复数的和、差、积、商。
时间: 2024-10-22 21:12:33 浏览: 42
这是1.定义一个复数类 complex ,它的内部具有两个实例变量:realPart和imagPart,分别代表复数的实部和虚
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为了实现这个功能,我们可以创建一个名为`ComplexNumber`的类,包含两个私有变量表示复数的实部(`realPart`)和虚部(`imaginaryPart`)。然后提供构造函数接受实部和虚部的值,以及getter和setter方法来获取和设置这些值。接下来,我们将定义四个公共的方法:加法(`addition()`), 减法(`subtraction()`), 积(`multiplication()`), 和除法(`division()`),分别计算两个复数之间的和、差、积和商。
以下是`ComplexNumber`类的实现:
```java
public class ComplexNumber {
private double realPart;
private double imaginaryPart;
// 构造函数
public ComplexNumber(double real, double imaginary) {
this.realPart = real;
this.imaginaryPart = imaginary;
}
// Getter and Setter methods
public double getRealPart() {
return realPart;
}
public void setRealPart(double realPart) {
this.realPart = realPart;
}
public double getImaginaryPart() {
return imaginaryPart;
}
public void setImaginaryPart(double imaginaryPart) {
this.imaginaryPart = imaginaryPart;
}
// 加法方法
public ComplexNumber addition(ComplexNumber other) {
double newReal = realPart + other.getRealPart();
double newImaginary = imaginaryPart + other.getImaginaryPart();
return new ComplexNumber(newReal, newImaginary);
}
// 减法方法
public ComplexNumber subtraction(ComplexNumber other) {
double newReal = realPart - other.getRealPart();
double newImaginary = imaginaryPart - other.getImaginaryPart();
return new ComplexNumber(newReal, newImaginary);
}
// 积方法
public ComplexNumber multiplication(ComplexNumber other) {
double newReal = realPart * other.getRealPart() - imaginaryPart * other.getImaginaryPart();
double newImaginary = realPart * other.getImaginaryPart() + imaginaryPart * other.getRealPart();
return new ComplexNumber(newReal, newImaginary);
}
// 商(假设除数不为0)方法
public ComplexNumber division(ComplexNumber other) {
if (other.getRealPart() != 0 && other.getImaginaryPart() != 0) {
double denominator = other.getRealPart() * other.getRealPart() + other.getImaginaryPart() * other.getImaginaryPart();
double newReal = (realPart * other.getRealPart() + imaginaryPart * other.getImaginaryPart()) / denominator;
double newImaginary = (imaginaryPart * other.getRealPart() - realPart * other.getImaginaryPart()) / denominator;
return new ComplexNumber(newReal, newImaginary);
} else {
throw new ArithmeticException("Cannot divide by zero");
}
}
}
```
要在字符界面上运行此程序,你需要创建一个`Main`类或使用`java.util.Scanner`从控制台读取用户输入,实例化两个`ComplexNumber`对象,然后调用相应的方法进行操作。这里我没有展示完整的主程序代码,但你可以按照以下步骤来完成:
1. 创建`Scanner`对象获取用户输入的实部和虚部。
2. 实例化两个`ComplexNumber`对象。
3. 使用上述方法进行加减乘除运算。
4. 输出结果。
如果你需要具体的代码示例,包括如何处理用户输入和显示结果,请告诉我,我会继续帮你完成这部分。
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