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Why does flowing off the end of a non-void function without returning a value not produce a compiler
...ng so it doesn't force you to put a return at the bottom of the function.
javac, on the other hand, tries to verify that all code paths return a value and throws an error if it cannot prove that they all do. This error is mandated by the Java language specification. Note that sometimes it is wrong ...
Why JavaScript rather than a standard browser virtual machine?
Would it not make sense to support a set of languages (Java, Python, Ruby, etc.) by way of a standardized virtual machine hosted in the browser rather than requiring the use of a specialized language -- really, a specialized paradigm -- for client scripting only?
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Test if a string contains any of the strings from an array
...
EDIT: Here is an update using the Java 8 Streaming API. So much cleaner. Can still be combined with regular expressions too.
public static boolean stringContainsItemFromList(String inputStr, String[] items) {
return Arrays.stream(items).anyMatch(inputStr:...
How to create PDFs in an Android app? [closed]
...//sourceforge.net/projects/itext/ (library)
http://www.vogella.de/articles/JavaPDF/article.html (tutorial)
http://tutorials.jenkov.com/java-itext/image.html (images tutorial)
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What would be C++ limitations compared C language? [closed]
...of a queue in C is dafter than suggesting 'use objective C' and 'call the Java java.util.Queue class using JNI' or 'call the CPython library' - Objective C actually is a proper superset of C (including C99), and Java and CPython libraries both are callable directly from C without having to port unr...
When do you use map vs flatMap in RxJava?
When do you use map vs flatMap in RxJava ?
10 Answers
10
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How do I tell Spring Boot which main class to use for the executable jar?
... pom:
<properties>
<!-- The main class to start by executing java -jar -->
<start-class>com.mycorp.starter.HelloWorldApplication</start-class>
</properties>
or
<build>
<plugins>
<plugin>
<groupId>org.springframework.boot&...
Does a `+` in a URL scheme/host/path represent a space?
...ess the question. And, incorrectly encodes URLs, with a specific language (JavaScript) -- depending on the context, you probably don't want to encode where you need special (not literal) slashes (/) and colons(:) for the URL to work.
– Gremio
Apr 9 '18 at 17:13...
How to make a copy of a file in android?
... }
} finally {
in.close();
}
}
On API 19+ you can use Java Automatic Resource Management:
public static void copy(File src, File dst) throws IOException {
try (InputStream in = new FileInputStream(src)) {
try (OutputStream out = new FileOutputStream(dst)) {
...
Purpose of buildscript block in Gradle
... that whatever dependencies within buildscript { ... } are used not by the Java/Kotlin code/program (or whatever you're using) . But instead, they are ONLY meant to be used by gradle scripts. So for instance you need to use some plugins that are not provided by default, then you add it in buildscrip...