需要帮助设置类的实际值等于传递给java中方法的参数

Question

public Complex(String cStr){
    this(cStr.split("(?=\\+)|(?=\\-)"));  // splits cStr at + or - into an 
    // array of strings having two elements.  The first element of the 
    // resultant array will be the real portion, while the second is the 
    // imaginary portion.  This array is passed to the next constructor.


How do I determine what the complex number itself is?

    // TODO: Write a getter called getComplex() that returns this Complex number itself.  
    // NOTE: you must return a Complex type, not a String type.



}

如果有人可以在此代码的任何部分提供任何帮助，将不胜感激！

Answer 1

对于初学者，我将定义整个类。所以可能是这样的：

class Complex {
    float real, img;

    public Complex(float real, float img) {
        this.real = real;
        this.img = img;
    }
}

此后，您可以轻松完成自己想做的事情：

public Complex(String real, String img) {
    this(Float.parseFloat(real), Float.parseFloat(img));
}

public Complex(String str) {
    String[] components = str.split("(?=\\+)|(?=\\-)");
    this(components[0], components[1]);
}

您的问题不是很清楚，但是我想这就是您想要的。我建议写一个叫做Complex.parseComplex(String str)的静态方法，因为这是Java中解析字符串中数字类型的标准方法。希望对您有所帮助！