Kotlin program adds two complex numbers by passing a class to a function

Kotlin Complete Examples

In this program, you will learn how to add two complex numbers in Kotlin by creating a class named Complex and passing it to the function add().

Example: Adding two complex numbers

class　Complex(internal　var　real:　Double,　internal　var　imag:　Double)
fun　main(args:　Array<String>)　{
　　　　val　n1　=　Complex(2.3,　4.5)
　　　　val　n2　=　Complex(3.4,　5.0)
　　　　val　temp:　Complex
　　　　temp　=　add(n1,　n2)
　　　　System.out.printf("Sum　=　%.1f　+　%.1fi",　temp.real,　temp.imag)
}
fun　add(n1:　Complex,　n2:　Complex):　Complex　{
　　　　val　temp　=　Complex(0.0,　0.0)
　　　　temp.real　=　n1.real　+　n2.real
　　　　temp.imag　=　n1.imag　+　n2.imag
　　　　return　temp
}

When the program is run, the output is:

Sum　=　5.7　+　9.5i

In the above program, we create a class Complex with two member variables: real and imag. As the name implies, real stores the real part of the complex number, and imag stores the imaginary part.

The Complex class has a constructor that initializes the values of real and imag.

We also created a new static function add(), which accepts two complex numbers as parameters and returns the result as a complex number.

In the add() method, we just need to add the complex number n1and n2the real and imaginary parts are added, stored in a new variable temp, and then returned.

Then, in the call to the function main(), we use the printf() function to print it.

This is the equivalent Java code:Java Program for Adding Two Complex Numbers

Kotlin Complete Examples