Simple method delegation: Use method references for straightforward delegations that don’t require modifying or processing arguments. For example, list.forEach(System.out::println) is clearer ...

Benefits of the Java String printf method The Java String printf method can be confusing at first, but it greatly simplifies how you format complex Strings. This is especially true when creating ...

To complete the use case, you must convert this one-character String into a single Java char with the charAt(0) method. Java Scanner char input code example The code to get Scanner input one char at a ...

This Java tip introduces additional concepts and techniques related to fields and methods–namely field constants, field-access rules, chaining instance method calls, pass-by-value arguments ...

The example code below shows how to use Java’s DirectoryStream in a method to list the files of a directory: public Set<String> listFilesUsingDirectoryStream(String dir) throws IOException { ...