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affordable web hosting front page ) Let's see how we might implement them in Java. From the standpoint of a data type you really don't need much. Mathematically a complex number is composed of a real part u and an imaginary part v. We can create such a class in the following way:public class ComplexNumber extends Object { public double u; public double v;}While this is sufficient to encompass all the data that one needs in a complex number it's not a very good example of object-oriented programming. To actually do anything with this number we have to know exactly how the data structure is defined.
affordable web hosting front page If we change the data structure, for instance by defining a complex number in terms of it's magnitude r and its argument theta instead of by its real and imaginary components we have to change all the code that depends on it. We also have to write code to explicitly add the numbers, multiply them or do anything else we might need to do with complex numbers. If we need to add complex numbers in more than one place, then we need to write the addition code again, or, at the very least, copy and paste it.A better implementation of a complex number class will shield us from the exact storage of the data, i.e.
affordable web hosting front page x and y vs. r and theta. It will also provide methods that let us perform any operation we might need to perform on or with a complex number.Before writing code we need to ask ourselves what we'll do with a complex number. Most objects first require a constructor, a method that is called when you create a new complex number.
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