how to call java methods in python

[masood shaik]

On Oct 4, 1:16 pm, Chris Rebert <c... at rebertia.com> wrote:
> On Tue, Oct 4, 2011 at 12:14 AM, masood shaik <masood.... at gmail.com> wrote:
> > Hi
> >  I am trying out my hand on accessing java methods in python. here is
> > my piece of code..
>
> > Calculator.java
> > ---------------
> > public class Calculator {
>
> >    public Calculator(){
>
> >    }
>
> >    public double calculateTip(double cost, double tipPercentage){
> >        return cost * tipPercentage;
> >    }
>
> >    public double calculateTax(double cost, double taxPercentage){
> >        return cost * taxPercentage;
> >    }
>
> > }
>
> > javaInPython.py
> > ---------------
> > import Calculator
>
> > class javaInPython(Calculator):
> >    def __init__(self):
> >        pass
>
> >    def calculateTotal(self, cost, tip, tax):
> >        return cost + self.calculateTip(tip,tax) +
> > self.calculateTax(tax,tip)
>
> > if __name__ == "__main__":
> >    calc = javaInPython()
> >    cost = 23.75
> >    tip = .15
> >    tax = .07
> >    print "Starting Cost: ", cost
> >    print "Tip Percentage: ", tip
> >    print "Tax Percentage: ", tax
>

Please help me

Regarding how to create java bridge as how to call a java function
from python


> > Now i am trying to access the calculateTip() and its showing import
> > error.
> > It works fine when i am running it with jython but why its not
> > happening in python.
>
> That's because the integration functionality you're depending upon is
> *specific to Jython*. Unlike Jython, CPython does not include an
> automatic Java bridge. CPython doesn't feature Java integration; only
> Jython does.
>
> (N.B.: CPython is the reference implementation of Python, hosted at python.org.)
>
> Cheers,
> Chris