I have found these various “singleton” methods to be useful for passing a single value to an API that requires a collection of that value. Of course, this works best when the code processing the ...

/** * Instantiate my collections with empty versions using Collections fields. * This will result in javac compiler warnings stating "warning: [unchecked] * unchecked ...

There are several ways to find duplicates in a Java List, array or other collection class. The following list describes some of the most commonly used approaches: Use a method in the Java Streams API ...