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What's so hard about putting some braces in your code?

else if(weight >= 25000)
input1 = 5.50;
Becomes


else if(weight >= 25000) {
input1 = 5.50;
// now you...

> i am able to do the calculate on an separate source code to see it works,
So why didn't you post this code as well?

> else if(weight >= 25000)
> input1 = 5.50;
You put the code...