thank you for your work shabbir,
I have some questions

I have LPP like this and i should solve this with dual simplex

2x1 + x2 >= 14
x1 + 2x2 >= 10
x1>= 0 , x2>= 0

With your program iam getting resoults like this:


and iam not sure if its ok?
With my second java program its showing result = 72
and with my paper calculations its also showing me 72 result