#ex2: demo
javac ComplexNumber.java
java ComplexNumber

javac Advanced.java
java Advanced

exit

OUTPUT:

ComplexNumber.main()
3.0 + 3.0i
-1.0 + 1.0i
5.0i
7.0
-1.0
12.0

Advanced.main()
A(s,k): s=Just Some String k=0
D.s()
A(s): s=Just Some String
C(s): s=Just Some String
A.getD()
D.s()
A.y()
C.x(): m=3
C.z()
A.z(): m=3
A.z(): m=3
A.q(): m=3
A.q(): m=3
C.r(): i=7
C.r(): i=7
C.r(): i=1
C.t()