String to Decimal Conversion
I am having a problem converting a string to decimal. I want to convert 1.0 to decimal 1.0. I have tried the java.lang.Integer class use= (Integer/parseInt 1.1) java.lang.NumberFormatException: For input string: 1.1 (NO_SOURCE_FILE:0) But it won't give. It does however work when I run it with 1. Any suggestions would be greatly appreciated. Thank you. -- You received this message because you are subscribed to the Google Groups Clojure group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/clojure?hl=en
Re: String to Decimal Conversion
1.1 is not representable as an Integer(Java class, or primitive int) and is not an integer (mathematical sense) so expecting to be representable as one, is kind of... odd. On Sun, Nov 22, 2009 at 4:14 PM, Don josereyno...@gmail.com wrote: I am having a problem converting a string to decimal. I want to convert 1.0 to decimal 1.0. I have tried the java.lang.Integer class use= (Integer/parseInt 1.1) java.lang.NumberFormatException: For input string: 1.1 (NO_SOURCE_FILE:0) But it won't give. It does however work when I run it with 1. Any suggestions would be greatly appreciated. Thank you. -- You received this message because you are subscribed to the Google Groups Clojure group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/clojure?hl=en -- And what is good, Phaedrus, And what is not good— Need we ask anyone to tell us these things? -- You received this message because you are subscribed to the Google Groups Clojure group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/clojure?hl=en
Re: String to Decimal Conversion
Yes you are right. Hence the error message I posted. But it was the only idea that came to mind. I'm new to clojure and not a java programmer. On Nov 22, 4:20 pm, Kevin Downey redc...@gmail.com wrote: 1.1 is not representable as an Integer(Java class, or primitive int) and is not an integer (mathematical sense) so expecting to be representable as one, is kind of... odd. On Sun, Nov 22, 2009 at 4:14 PM, Don josereyno...@gmail.com wrote: I am having a problem converting a string to decimal. I want to convert 1.0 to decimal 1.0. I have tried the java.lang.Integer class use= (Integer/parseInt 1.1) java.lang.NumberFormatException: For input string: 1.1 (NO_SOURCE_FILE:0) But it won't give. It does however work when I run it with 1. Any suggestions would be greatly appreciated. Thank you. -- You received this message because you are subscribed to the Google Groups Clojure group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/clojure?hl=en -- And what is good, Phaedrus, And what is not good— Need we ask anyone to tell us these things? -- You received this message because you are subscribed to the Google Groups Clojure group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/clojure?hl=en
Re: String to Decimal Conversion
I am having a problem converting a string to decimal. I want to convert 1.0 to decimal 1.0. For a double (not decimal): (Double/parseDouble 1.1) = 1.1 for a decimal: (BigDecimal. 1.1) 1.1M Note that Clojure has reader support for BigDecimal (the M). -- You received this message because you are subscribed to the Google Groups Clojure group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/clojure?hl=en
Re: String to Decimal Conversion
Thanks a bunch Richard. On Nov 22, 4:47 pm, Richard Newman holyg...@gmail.com wrote: I am having a problem converting a string to decimal. I want to convert 1.0 to decimal 1.0. For a double (not decimal): (Double/parseDouble 1.1) = 1.1 for a decimal: (BigDecimal. 1.1) 1.1M Note that Clojure has reader support for BigDecimal (the M). -- You received this message because you are subscribed to the Google Groups Clojure group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/clojure?hl=en
Re: String to Decimal Conversion
user= (read-string 1.1) 1.1 user= On Sun, Nov 22, 2009 at 4:48 PM, Don josereyno...@gmail.com wrote: Thanks a bunch Richard. On Nov 22, 4:47 pm, Richard Newman holyg...@gmail.com wrote: I am having a problem converting a string to decimal. I want to convert 1.0 to decimal 1.0. For a double (not decimal): (Double/parseDouble 1.1) = 1.1 for a decimal: (BigDecimal. 1.1) 1.1M Note that Clojure has reader support for BigDecimal (the M). -- You received this message because you are subscribed to the Google Groups Clojure group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/clojure?hl=en -- And what is good, Phaedrus, And what is not good— Need we ask anyone to tell us these things? -- You received this message because you are subscribed to the Google Groups Clojure group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/clojure?hl=en
Re: String to Decimal Conversion
Awesome Kevin. That solution is sexy. I don't even need the libraries anymore. On Nov 22, 5:02 pm, Kevin Downey redc...@gmail.com wrote: user= (read-string 1.1) 1.1 user= On Sun, Nov 22, 2009 at 4:48 PM, Don josereyno...@gmail.com wrote: Thanks a bunch Richard. On Nov 22, 4:47 pm, Richard Newman holyg...@gmail.com wrote: I am having a problem converting a string to decimal. I want to convert 1.0 to decimal 1.0. For a double (not decimal): (Double/parseDouble 1.1) = 1.1 for a decimal: (BigDecimal. 1.1) 1.1M Note that Clojure has reader support for BigDecimal (the M). -- You received this message because you are subscribed to the Google Groups Clojure group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/clojure?hl=en -- And what is good, Phaedrus, And what is not good— Need we ask anyone to tell us these things? -- You received this message because you are subscribed to the Google Groups Clojure group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/clojure?hl=en
Re: String to Decimal Conversion
Awesome Kevin. That solution is sexy. I don't even need the java library anymore. On Nov 22, 5:02 pm, Kevin Downey redc...@gmail.com wrote: user= (read-string 1.1) 1.1 user= On Sun, Nov 22, 2009 at 4:48 PM, Don josereyno...@gmail.com wrote: Thanks a bunch Richard. On Nov 22, 4:47 pm, Richard Newman holyg...@gmail.com wrote: I am having a problem converting a string to decimal. I want to convert 1.0 to decimal 1.0. For a double (not decimal): (Double/parseDouble 1.1) = 1.1 for a decimal: (BigDecimal. 1.1) 1.1M Note that Clojure has reader support for BigDecimal (the M). -- You received this message because you are subscribed to the Google Groups Clojure group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/clojure?hl=en -- And what is good, Phaedrus, And what is not good— Need we ask anyone to tell us these things? -- You received this message because you are subscribed to the Google Groups Clojure group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/clojure?hl=en
Re: String to Decimal Conversion
Awesome Kevin. That solution is sexy. I don't even need the java library anymore. Note, however, that this can return (or do!) near anything, because it accepts any Clojure syntax. user= (read-string \foo\) foo ; a string user= (read-string (1.1)) (1.1) ; a list containing a float user= (read-string foo) user/foo; an interned symbol including executing arbitrary code, unless you bind *read-eval*: user= (read-string #=(println \Oof\)) Oof; this gets printed. It could do much worse. nil In short... use the reader when you want to handle Clojure syntax. If you want to convert a string to a decimal, do it properly. You'll get useful exceptions, prevent bad input, and avoid inadvertent attack vectors. There's no needing the Java library -- you always have the core Java classes available, including Double and BigDecimal. HTH, -R -- You received this message because you are subscribed to the Google Groups Clojure group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/clojure?hl=en
