Create 24.1 Multiplication Imaginary Number 2 Constructor 3 Object.java

Author: prokrishpatel

24.1 Multiplication Imaginary Number 2 Constructor 3 Object.java

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+/*
+My son Priyanshu got an assignment from his teacher to perform multiplication of complex number.
+Help him to complete his assignment. Write a java code with following features:
+class Name: Complex
+Instance Variable: real, imaginary (int type)
+Constructor: **
+1. Complex()
+2. Complex(int, int)
+
+**Instance Method:
+1. Mul_Complex(Complex, Complex)
+2. Display()
+Read the real and imaginary from user and pass to the constructor as parameter
+Write a separate class Test_Complex with a main() method and test the Complex class methods
+
+Input Format
+
+First line Read the complex number 1 for real and imaginary First line Read the complex number 2 for real and imaginary
+
+Constraints
+
+real, imaginary > 1
+
+Output Format
+
+Print the Result in form of complex number : a+bi
+
+Sample Input 0
+
+2 3
+4 5
+Sample Output 0
+
+-7+22i
+Sample Input 1
+
+0 1
+2 3
+Sample Output 1
+
+-3+2i
+Sample Input 2
+
+2
+4 2
+Sample Output 2
+
+8+4i
+*/
+
+
+import java.io.*;
+import java.util.*;
+import java.text.*;
+import java.math.*;
+import java.util.regex.*;
+class Complex
+{
+    
+    int real,imaginary;
+    Complex()
+    {
+        real = 0;
+        imaginary = 0;
+    }
+    Complex(int x,int y)
+    {
+        real = x;
+        imaginary = y;
+    }
+    void mul_Complex(Complex c1,Complex c2)
+    {
+        //(a+bi)*(c+di) = (ac - bd) +i(ad + bc)
+        this.real = (c1.real*c2.real) - (c1.imaginary*c2.imaginary);
+        this.imaginary = (c1.real*c2.imaginary) + (c1.imaginary*c2.real);
+    }
+    void display()
+    {
+        System.out.println(real+"+"+imaginary+"i");
+    }
+}
+public class Solution {
+
+    public static void main(String[] args) {
+        /* Enter your code here. Read input from STDIN. Print output to STDOUT. Your class should be named Solution. */
+        Scanner sc = new Scanner(System.in);
+        Complex c1,c2,c3;
+        String []s1 = sc.nextLine().replaceAll("\\s+$","").split(" ");
+        String []s2 = sc.nextLine().replaceAll("\\s+$","").split(" ");
+        
+        int r1 = Integer.parseInt(s1[0]);
+        int r2 = Integer.parseInt(s2[0]);
+        int i1,i2;
+        if(s1.length==1)
+            i1 = 0;
+        else
+            i1 = Integer.parseInt(s1[1]);
+        
+        if(s2.length==1)
+            i2 = 0;
+        else
+            i2 = Integer.parseInt(s2[1]);
+        c1 = new Complex(r1,i1);
+        c2 = new Complex(r2,i2);
+        c3 = new Complex();
+        
+        
+        c3.mul_Complex(c1,c2);
+        c3.display();
+    }
+}