通过java中的循环解决

Question

I have a text box(having name b) and one submit button in index.jsp . I will enter something in text box then after clicking submit i get that value by in server side find.jsp . In find.jsp i get the value by request.getParameter("b"); In find.jsp calaculation is done as shown below:

double c=0;
double d=0;

7800.0/12 and 2640.0/12 are fixed.     

if request.getParameter("b")=1 then 

c=7800.0/12*5;// 5 is multiplied with above number(in first one)

d=2640.0/12*5;// 5 is multiplied with above number(in second one) 

if request.getParameter("b")=2 then 

c=7800.0/12*8;// here 5 gets incremented by 3 and became 8(in first one)

d=2640.0/12*8;// same also here( in second one) 

Similarly if i will enter 20 then accordingly c and d will be calculated. I cannot use if-else as any value can be entered in client side and accordingly c and d will be calculated in server side. How can i implement it in a loop? Many thanks

Answer 1

try

    double devide=2.0
    devide = Integer.parseInt(request.getParameter("b"))*3+devide

    c=7800.0/(12*devide);
    d=2640.0/(12*devide);

Answer 2

You can use for any value to count below one logic.

int value = Integer.parseInt(request.getParameter("b"));
double x=2.0;
double valueForDevide = (value*3)+x;

c=7800.0/(12*valueForDevide );
d=2640.0/(12*valueForDevide );