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Concatenating null strings in Java [duplicate]

... Why must it work? The JLS 5, Section 15.18.1.1 JLS 8 § 15.18.1 "String Concatenation Operator +", leading to JLS 8, § 5.1.11 "String Conversion", requires this operation to succeed without failure: ...Now only reference values need to be considered. If the reference is null, it is co...
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Java equivalents of C# String.Format() and String.Join()

...know this is a bit of a newbie question, but are there equivalents to C#'s string operations in Java? 16 Answers ...
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Format a Go string without printing?

Is there a simple way to format a string in Go without printing the string? 7 Answers ...
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Android XML Percent Symbol

I have an array of strings in which the % symbol is used. Proper format for using the % is % . When I have a string in that array with multiple % it gives me this error. ...
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How to convert / cast long to String?

... See the reference documentation for the String class: String s = String.valueOf(date); If your Long might be null and you don't want to get a 4-letter "null" string, you might use Objects.toString, like: String s = Objects.toString(date, null); EDIT: You rever...
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HTML in string resource?

I know I can put escaped HTML tags in string resources. However, looking at the source code for the Contacts application I can see that they have a way of not having to encode the HTML. Quote from the Contacts application strings.xml : ...
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How can I check if a var is a string in JavaScript?

How can I check if a var is a string in JavaScript? 7 Answers 7 ...
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Converting an integer to a string in PHP

Is there a way to convert an integer to a string in PHP? 14 Answers 14 ...
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What exactly do “u” and “r” string flags do, and what are raw string literals?

While asking this question , I realized I didn't know much about raw strings. For somebody claiming to be a Django trainer, this sucks. ...
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Remove the last character in a string in T-SQL?

How do I remove the last character in a string in T-SQL ? 21 Answers 21 ...