from java.io import FileWriter
from java.io import File
from java.io import FileReader
f1 = File("file2.txt")
fr = FileReader(f1)
f2 = File("file3.txt")
fw = FileWriter(f2)
while True:
ch = fr.read()
if ch != -1:
fw.write(ch)
else:
break
fr.close()
fw.close()
