I assume that -1 would not be for your case. Was also under the impression that you could return a Null value for any in this case, return a negative value.Īlso, I have not tried to compile this code, so check for syntax errors. Do something here to signify that the String submitted was not a valid First, guarantee that you have a sufficient ammount of digits in the Supposed to return a double value of 0.01? If that is the case, then I The question I have now is if the string sends a value of "1", is it So, if the string value sent is 12345, the actual double value you want To make success inevitable, let's start by drawing a bunch of UMLĭiagrams! - Tom Copeland, Jakarta DeveloperĪh, now I understand what you meant by implicit decimal. > *Copyright (c) ITtoolbox and message author. > *Leave Group: mailto: *Need Subscription Help? mailto: *Terms of Use: http:/ Opens a new window / help/ termsofuse.htm > *Manage Subscriptions: http:/ Opens a new window / My. > *Archives: http:/ Opens a new window / g/ java-l.asp Please notify the sender by E-Mail at the address > received this communication in error, please do not distribute, and Double d Double.parseDouble (s.replaceAll (',','')) I haven't bothered with locales since you specifically stated you wanted commas replaced so I'm assuming you've already established yourself as a locale with comma is the thousands separator and the period is the. > confidential and exempt from disclosure under applicable law. Here's the easiest: String s '835,111.2' // NumberFormatException possible. > which it is addressed and may contain information that is privileged, DecimalFormat (0.00) We can use DecimalFormat ('0.00') to ensure the number always round to 2 decimal places. Note In short, for monetary calculation, picks BigDecimal for display purpose, picks DecimalFormat ('0.00'). > This E-Mail is intended only for the use of the individual or entity to There are a few ways to round float or double to 2 decimal places in Java. > amt = Double.parseDouble((sVal.substring(0,(iLen-2)) + "." + This function gets called about 10000 times each run. > me some pointers on how to make this better? I am concerned about > better ways to do it in Java and I just don't know them. saying that I know there is probably tons > the inbound value is 2 decimal place implicit. At the same time I need to of course add the decimal > I am just learning Java and have a need to take a string value and > # View Group Archive: http:/ Opens a new window / / hrd.asp? i=747 > http:/ Opens a new window / / r/ hdr.asp? r=14395 > # Read today's most popular technical paper. Please notify the sender by E-Mail at the addressĭouble value = Double.parseDouble("12.345") Received this communication in error, please do not distribute, and delete Which it is addressed and may contain information that is privileged,Ĭonfidential and exempt from disclosure under applicable law. How to convert a double value to String in Java - The double data type in Java stores double-precision 64-bit IEEE 754 floating point number. This E-Mail is intended only for the use of the individual or entity to This function gets called about 10000 times each run.Īmt = Double.parseDouble((sVal.substring(0,(iLen-2)) + ""."" + Me some pointers on how to make this better? I am concerned about memoryĪlso. saying that I know there is probably tons ofīetter ways to do it in Java and I just don't know them. The inbound value is 2 decimal place implicit. At the same time I need to of course add the decimal since am just learning Java and have a need to take a string value and convert Read the required primitive double value in to the Double class reference variable (auto-boxing happens) and, convert it into a String using the toString() method. The toString () method of the wrapper class Double returns the String format of the current Double object. Using the toString() method of the Double class − In-fact it is the easy way to convert a double value to a String. You can convert a double value into a String by simply adding it to an empty String using the “+” operator. It concatenates the other operand to String and returns a String object. The + operator is an addition operator but when used with Strings it acts as a concatenation operator. passTable.getContainerProperty (rs.getString ('itemid'), 'Average Cost').setValue (rs. You can convert a double value into String in various different ways in Java − Using the “+” operator − Since java supports auto boxing, the primitive value and the object can be used interchangeably. Like all other primitive variables double also have a wrapper class (Double) wrapping the primitive data type. It is used as the default type for decimal value in Java. The double data type in Java stores double-precision 64-bit IEEE 754 floating point number.
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