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Java Program to Create Complex Number Class

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In this video, we will write a Java Program to Create a Complex Number Class. This example demonstrates how to implement a class in Java to represent complex numbers and perform operations like addition, subtraction, and displaying the result. It is a great exercise to understand the use of classes, objects, constructors, and methods in Java using OOP principles.

We will cover:
Defining a ComplexNumber class in Java
Creating constructors to initialise real and imaginary parts
Writing methods for addition and subtraction of complex numbers
Writing methods for multiplication and division of complex numbers
Displaying complex numbers in proper format
Testing the class with sample inputs
This program is useful for beginners learning Java OOP concepts and students preparing for school or college assignments.

If you are learning Java and want to strengthen your understanding of Object-Oriented Programming (OOP), this video will help you step by step.

Final code included in the video.

Perfect for:
B.Tech / BCA students
AP Computer Science students learning Java
Beginners who want to practice Java loops and conditional logic
Students learning mathematical programs in Java for exams and assignments
Developers preparing for competitive coding challenges
Anyone preparing for Java interview questions related to number theory

Programming Language: Java
Level: Beginner-friendly

Find this problem solved & explained in Hindi on my CodeWithBK Hindi channel:    • Complex number class in Java | Classes & O...  

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Timestamps:
0:00 Introduction
0:24 Problem Description
1:04 Parameterised constructor 1 of the ComplexNumber class
1:42 Override the toString() method to print the complex number
3:13 Parameterised constructor 2 of the ComplexNumber class
4:07 Default constructor 3 of the ComplexNumber class
6:03 find the modulus of the complex number
7:13 find the complex conjugate of the given complex number
8:16 add two complex numbers
10:20 subtract two complex numbers
11:18 multiply two complex numbers
13:45 divide two complex numbers
18:02 handle division of complex numbers by 0
19:24 check for equality of two complex numbers

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