List is a Java interface that describes a sequential collection of objects. ... Because the print() method parameter type is List<String>, this method’s implementation doesn’t have to change.

When developing Java applications, it is easy to get used to invoking logging on the provided logger via its log level-specific methods. For example, Log4j‘s Logger provides methods such as ...

The Long.parseLong() method returns a long primitive, not a wrapper.; The Long.parseLong() method uses the Long class, which is semantically correct. The Long.parseLong() method does not require ...

Using Java’s String length method. To get the number of characters in a given piece of text, the Java String length() method is all you need. Just make sure the String is not null, and avoid any ...