I need help converting this python programming code into a Java code... import t

Question

I need help converting this python programming code into a Java code...

import time
from math import ceil,fabs

def combinations(size, values):
if size == 1:
return [[i] for i in values]

half = combinations(size - 1, values)
result = []
for value in values:
for row in half:
result.append([value] + row)
return result

def expressions():
# There are two versions of each term and operation - the pretty version,
# to be shown to the user, and the version to be evaluated by Python

all_terms = [ ('4', 4.0),('sqrt(4)', 2.0),('4!', 24.0),('.4', 0.4),('.4bar', 4.0 / 9.0),
('sqrt(.4bar)', 2.0 / 3.0)]

all_operators = [('+', '+'),('-', '-'),('*', '*'),('/', '/'),('^', '**')]

expression_combos = ['(%s %s %s) %s (%s %s %s)', # ( A x B ) x ( C x D )
'( (%s %s %s) %s %s) %s %s', # ( ( A x B ) x C ) x D
'%s %s (%s %s %s) %s %s', # A x ( B x C ) x D
'%s %s (%s %s (%s %s %s))' # A x ( B x ( C x D ) )]

for association in expression_combos:
for terms in combinations(4, all_terms):
for operations in combinations(3, all_operators):

values = ( terms[0][0],operations[0][0],terms[1][0],operations[1][0],terms[2][0],
operations[2][0],terms[3][0])

# To be executed by Python
py_values = (terms[0][1],operations[0][1],terms[1][1],operations[1][1],terms[2][1],operations[2][1],terms[3][1]yield (association % values, association % py_values)

def main():
results = [None for i in range (0, 101)]

start_time = time.time()
iterations = 0

for expression, py_expression in expressions():
iterations = iterations + 1
try:
result = eval(py_expression)
if result > 0 and result <= 100:
int_result = int(ceil(result))
if fabs(int_result - result) < 0.0000001:
if results[int_result] == None:
results[int_result] = expression
except ZeroDivisionError:
pass
except OverflowError:
pass
except ValueError:
pass

for ii, expression in enumerate(results):
if ii > 0:
print ii,'=',expression
print "Done. (%d loop iterations)" % iterations
print "Elapsed time: ", (time.time() - start_time), " seconds

Explanation / Answer

Dear, Qustion is not clear all a single program or multiple function Able to convert this code only to java String combinations(int size, int [] values) { if(size==1) return "[values[size]]"; else { int half=combinations(size-1,values); String result; for(int value;value

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