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Calling Java varargs method with single null argument?
If I have a vararg Java method foo(Object ...arg) and I call foo(null, null) , I have both arg[0] and arg[1] as null s. But if I call foo(null) , arg itself is null. Why is this happening?
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C++ equivalent of StringBuffer/StringBuilder?
...ent string concatenation functionality, similar to C#'s StringBuilder or Java's StringBuffer ?
10 Answers
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Python vs Cpython
...plementations of the Python programming language; these are implemented in Java, C# and RPython (a subset of Python), respectively. Jython compiles your Python code to Java bytecode, so your Python code can run on the JVM. IronPython lets you run Python on the Microsoft CLR. And PyPy, being implemen...
Custom thread pool in Java 8 parallel stream
Is it possible to specify a custom thread pool for Java 8 parallel stream ? I can not find it anywhere.
15 Answers
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Why don't Java's +=, -=, *=, /= compound assignment operators require casting?
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A likely reason to why the Java compiler adds a typecast is because if you're trying to perform arithmetic on incompatible types, there is no way of performing a typecast of the result using the contracted form. A typecast of the result is generally mo...
String.replaceAll single backslashes with double backslashes
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Update: as per the comments, you appear to want to use the string in JavaScript context. You'd perhaps better use StringEscapeUtils#escapeEcmaScript() instead to cover more characters.
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Why is a combiner needed for reduce method that converts type in java 8
... compilation error you got - argument mismatch; int cannot be converted to java.lang.String. Actually, I think passing 0 as the identity value is also wrong here, since a String is expected (T).
Also note that this version of reduce processes a stream of Ts and returns a T, so you can't use it to r...
How do I import the javax.servlet API in my Eclipse project?
I want to develop with Servlets in Eclipse, but it says that the package javax.servlet cannot be resolved. How can I add javax.servlet package to my Eclipse project?
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Bytes of a string in Java
In Java, if I have a String x , how can I calculate the number of bytes in that string?
8 Answers
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Git Ignores and Maven targets
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Just tried to commit a java project with "target" subpackage in one of it's modules. :(
– okutane
Mar 14 '17 at 5:47
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