Java Program to Add Two Complex Numbers

Last Updated: 09 July, 2022

Example: Adding two complex numbers in Java

  public class ComplexNumber {
    // variables to hold real and imaginary number of a complex number
    int realNum, imgNum;
  
    // constructor to initialize the complex number
    ComplexNumber(int r, int i) {
      this.realNum = r;
      this.imgNum = i;
    }
  
    public static ComplexNumber add(ComplexNumber cn1, ComplexNumber cn2) {
      // temporary complex number to store the sum of two numbers
      ComplexNumber temp = new ComplexNumber(0, 0);
  
      temp.realNum = cn1.realNum + cn2.realNum;
      temp.imgNum = cn1.imgNum + cn2.imgNum;
  
      // after addition returning result
      return temp;
    }
  
    public static void main(String args[]) {
      ComplexNumber cnObj1 = new ComplexNumber(7, 6);
      ComplexNumber cnObj2 = new ComplexNumber(2, 1);
      // calling add() to perform addition
      ComplexNumber tempObj = add(cnObj1, cnObj2);
      System.out.printf("Sum is: " + tempObj.realNum + " + " + tempObj.imgNum + "i");
    }
  }

Output

Sum is: 9 + 7i