i don't really think this is a program. its a package but then again it has a main method ------------------ I wish there was a button on my monitor to turn up the intellegince. Theres a button called 'brightness' but it doesn't work

"Programming today is a race between software engineers striving to build bigger and better idiot-proof programs, and the Universe trying to produce bigger and better idiots. So far, the Universe is winning."

I think your code is about complex numbers whose general syntax is --------x+iy----------- where x is its real part & y is its imaginary part. and you want to perform some mathematical operation on them like addition , Subtraction , multiplication , division , etc. I make some modification to your code (commented some thing from that & adding some thing from my side)as i written addition& subtraction operation , you can write other operations also. code ------------------------------------ <pre> /** * Title: Govinda

* Description:

* Copyright: Copyright (c)

* Company:

* @author * @version 1.0 */ package Proj1; public class complex { private double real, imaginary; private complex c1_1, c2_2; public complex(double r, double i) { real=r; imaginary=i; } /*public complex(complex c1, complex c2) { c1_1=c1; c2_2=c2; }*/ // i don't understand the purpose of this constructor. public complex add(complex c) { return new complex(c.real+this.real,c.imaginary+this.imaginary); } public complex subtract (complex c) { return new complex(this.real-c.real ,this.imaginary-c.imaginary); } public String toString() { return "\nThe Real part of Complex Number is "+ real +"\n"+ "The Imaginary part of Complex Number is "+ imaginary ; } public static void main(String[] args) { complex c1=new complex(1.0,2); System.out.println("Complex number c1 is"+c1); complex c2=new complex(3,4); System.out.println("Complex number c2 is"+c2); complex c3=c1.add(c2); System.out.println("The addition of c1 & c2 produced "+c3); complex c8=new complex(-1,-2); System.out.println("Complex number c8 is"+c8); complex c9=new complex(1,2); System.out.println("Complex number c9 is"+c9); System.out.println("The subtraction of c8 & c9 produced "+c8.subtract(c9)); /*complex c4=new complex(c1,c2); complex c5=new complex(c8,c9); by this code if you want to add two complex numbers and return new one then write an another method to do so */

} } </pre> when trying to run this code place in its appropriate package , give proper command line with package name and see the result. one more thing your classpath should pointing to that package Proj1. ooooop's sheeeeeeeeeeeee silence

Originally posted by Hemal Mehta: Can anyone tell what this program accomplishes, i am somewhat confused!

Hemal, The program is just one way of creating objects. Explaination goes like this package Proj1; public class complex{ private double real, imaginary; private complex c1_1, c2_2; //Constructor private complex(double r, double i){ real=r; imaginary=i; System.out.println("in constr real=" + real + " img=" + imaginary ); } //Constructor protected complex(complex c1, complex c2){ /*Here real, imaginary are not set for the object hence when you create object with this constructor,you can't get values real and imaginary variables.Still if you want the data then u should refer through c1_1 and c2_2 object reference. */ c1_1=c1; c2_2=c2; } //method protected complex add1(complex c1, complex c2){ return new complex(c1,c2); } //method public complex add(complex c){ System.out.println("c2 values real=" + c.real+" img=" + c.imaginary); return new complex(c.real+c.imaginary,c.real+c.imaginary); } public static void main(String[] args){

Note: The Hemal's original program does't contain any result for output hence the program after running becomes mum.

HTH Prasad

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[This message has been edited by Prasad Ballari (edited November 26, 2000).] [This message has been edited by Prasad Ballari (edited November 26, 2000).]

subject: Can someone shed some light on this program