Java Eclipse:-

Submit 2 files :

the .java file that defines the object - ComplexNumber.java

the usage file - ComplexNumberUsage.java(or something similar)

complex number has 2 parts

real number

imaginary number

addition of 2 complex numbers cn1, cn2

cn1's real part + cn2's real part

cn1's imaginary part + cn2's imaginary part

subtraction of 2 complex numbers cn1, cn2

cn1's real part - cn2's real part

cn1's imaginary part - cn2's imaginary part

multiplication of 2 complex numbers

( (cn1's real part cn2's real part) - (cn1's imaginary part cn2's imaginary part) ) +

( (cn1's real part cn2's imaginary part) + (cn1's imaginary part cn2's real part) )

2 complex numbers : (a+ib) & (c+id)

addition : ( (a+c) + i(b+d) )

subtraction : ( (a-c) + i(b-d) )

multiplication : ( (ac-bd) + i(ad+bc) )