The java.util package contains the collections framework, legacy collection classes, event model, date and time facilities, internationalisation, and miscellaneous utility classes (a string tokenizer, a random-number generator, and a bit array).
This section is for readers that want to learn the basic java programming. The java.util package is necessary to learn since it provides the important classes necessary in learning java. Not only that this is to be learn by novice programmer but this package must also be mastered by an expert programmer as the java.util package is the foundation of a java programming.
Since JDK 1.0
java.util Package Classes
The following are the classes under the java.lang package. Please master the majority of these classes as these are all helpful.
The Calendar class is an abstract class that provides methods for converting between a specific instant in time and a set of calendar fields such as YEAR, MONTH, DAY_OF_MONTH, HOUR, and so on, and for manipulating the calendar fields, such as getting the date of the next week.
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