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Building big, immutable objects without using constructors having long parameter lists
...rspacing(12)
.build();
I wrote "CORRECTLY DONE" in bold because most Java programmers get fluent interfaces wrong and pollute their object with the method necessary to build the object, which is of course completely wrong.
The trick is that only the build() method actually creates a Foo (henc...
What is the difference between partitioning and bucketing a table in Hive ?
...e number of buckets? For string-valued clustered columns, does it use the Java hashCode() of the string as the hash function? Can the programmer choose the hash function?
– Don Smith
Nov 4 '19 at 17:27
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Parcelable where/when is describeContents() used?
...d at some point he realized: Oh, damn, there is no multiple inheritance in Java... :-)
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Why do == comparisons with Integer.valueOf(String) give different results for 127 and 128?
...h, it appears that the questioner did not understand an underlying fact in Java: When using "==" to compare two objects, you are testing if they are references to the same object. When using "equals()", you are testing if they have the same value. You cannot use "equals" to compare primitives.
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In Clojure, when should I use a vector over a list, and the other way around?
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If you've done Java programming a lot, and are familiar with the Java collection framework, think of lists like LinkedList, and vectors like ArrayList. So you can pretty much choose containers the same way.
For further clarification: if yo...
.NET Process.Start default directory?
I'm firing off a Java application from inside of a C# .NET console application. It works fine for the case where the Java application doesn't care what the "default" directory is, but fails for a Java application that only searches the current directory for support files.
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Why should I learn Lisp? [closed]
...ry, and store both your code and your data there. Notice carefully that a Java program (or C#, or whatever you like) is a manifestation of the Turing model. You set your program in concrete, once and for all. Then you hope you can deal with all data that gets thrown on it.
Lisp maintains the Von...
JAX-RS — How to return JSON and HTTP status code together?
...e with other implementations) and throw any of the existing sub-classes of javax.ws.rs.WebApplicationException. These are pre-defined exception types that are pre-mapped to different error codes, for example:
BadRequestException (400)
InternalServerErrorException (500)
NotFoundException (404)
Et...
How to detect a loop in a linked list?
Say you have a linked list structure in Java. It's made up of Nodes:
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Variable declared in for-loop is local variable?
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Note that Java takes an intermediate approach between C++ and C#: as it is the OP's example would be valid in Java, but if the outer i definition was moved before the for loop, the inner i definition would be marked as invalid.
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