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Cannot Use Mod On This Number Type Java.lang.integer

Show Kirk Rasmussen added a comment - 06/Jul/12 11:29 Mini-rant: Come on guys this is embarrassing that this hasn't been fixed before 2.0 was released. The easiest way to do this in Groovy is with a multi-line string literal: Listing 2.1 def sayHello(name) { println """Dear ${name}, In the past, I moved back and forth between 3.1 and 3.2 and haven't seen problems (that I can remember). That said, it does add noise to your code, particularly when there is more text than expressions. have a peek here

The solution lies in a multi-purpose conversion mechanism. And where are they documented? Something like a container classpath > entry should do, I think. Sometimes a list literal isn't sufficient and you need to build one dynamically. this website

To verify that the expression does indeed result in true, you can prefix it with the keyword assert: assert 8 + 4 == 12 When you run We actually noticed the problem when upgrading a Grails application from 1.2.0 to 1.3.7 (i.e. Perhaps you'd prefer to indent it like so: def sayHello(name) { println """Dear ${name}, Thank you for signing up to our product. Fortunately that's not the case with Groovy.

Underbrace under nested square roots What crime would be illegal to uncover in medieval Europe? So -1 represents the last element, -2 the second to last, and so on. We'll be delving deeper into that topic later on in chapter TODO. The contains() method is different because it is provided by the JDK itself.

In other words, the division has occurred first. The == operator performs a value comparison rather than an object identity one. Show Jonathan Pearlin added a comment - 18/Mar/11 22:31 I should add that we also tested the behavior in 1.6.x and we got the expected results (i.e. you could check here We'll start with ordered collections, which are represented by the java.util.List interface.

I've covered the case of a method returning an array, but there is still the question of how to handle methods that require an array as an argument. As you can guess from running these scripts, Groovy defaults to BigDecimal for floating point literals, which ensures accuracy. Do humans have an obligation to prevent animal on animal violence? The best advice is to stay calm and just look at both the Java API and Groovy JDK docs when searching for a method.

The previous example shows you how to iterate over a list, but what if you want to access an element at a specific index? https://samebug.io/exceptions/268129/java.lang.UnsupportedOperationException/cannot-use-mod-on-this-number-type?soft=false Hopefully there is a simple solution to this problem. Free forum by Nabble Edit this page [prev in list] [next in list] [prev in thread] [next in thread] List: groovy-user Subject: Re: [groovy-user] Integer/Long div? Roshan Dawrani wrote: > You can do 16 % ((int)15/3) to get rid of the bigdecimal context and > do the mod(). > > On 1/6/09, Fred Janon <[hidden email]> wrote:

Join them; it only takes a minute: Sign up Groovy error with method mod or % up vote 2 down vote favorite I just started to program in Groovy, I have navigate here The for loop also works exactly the same as for strings. let's see.. Nor does it use def.

It's simply a list of comma-separated values bounded by square brackets. Who this book is for 2. So what about Groovy? http://homeshareware.com/cannot-use/cannot-use-the-connection-type.html So how do you get a Character in Groovy?

And of course that type should be able to handle any language. You're still seeing a runtime error though, as Groovy doesn't perform a compile-time check even though we have specified the types. the problem with the type is a bug. > defining value as int or Integer should keep the value to be a int.

To answer those questions, you first need to know what type you're dealing with.

println "I found " + vowelCount + " vowels in the text" It's also easier to keep track of the spaces you need. We are 2 developers working on the same project, one on Windows and one on Linux. doesn't help. -- Russel. ==================================================== Dr Russel Winder +44 20 7585 2200 41 Buckmaster Road +44 7770 465 Take a tour to get the most out of Samebug.

Working with the filesystem 4.2. In the end, a book cannot satisfy everyone and any attempt to do so will result in failure. You'll need to install it for the purposes of this book because you will need access to the associated tools, in particular the Groovy console. this contact form Thanks in advance.

maybe you already fixed it, I just tried specifying Integer > again and it works. You can find the addAll() method and others defined on java.util.List. The first element of a sequence is at index 0. let's see..

There this was done: expression[int lc_stmt] : + (LPAREN typeSpec[true] RPAREN expression[lc_stmt])=> + lp:LPAREN^ {#lp.setType(TYPECAST);} typeSpec[true] RPAREN! + expression[lc_stmt] + | (LPAREN nls IDENT (COMMA nls IDENT)* RPAREN ASSIGN) => m:multipleAssignment[lc_stmt] def n = 100.0D ... The joy of strings 3.2. Show Jonathan Pearlin added a comment - 18/Mar/11 12:32 The issue with the precedence of casts and binary operations produces other unexpected behavior/exceptions.

Not the answer you're looking for? Antonym for Nourish Wrong way on a bike path? You can do 16 % ((int)15/3) to get rid of the bigdecimal context and do the mod(). On 10/18/06, Scott Hickey wrote: I think there *might* be simple solution for you based on the fact that you're having to change the .classpath file.

Groovy is looking for a property called println, not a method. more hot questions question feed default about us tour help blog chat data legal privacy policy work here advertising info mobile contact us feedback Technology Life / Arts Culture / Recreation The main issue that typically arises from this technique is the presence of spaces or tabs after the backslash. Looping with for The standard Groovy for loop works on any type of sequence, just like the array index operator.

So far, so simple.

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