| Package | Description |
|---|---|
| java.io |
Provides classes for input and output through data streams.
|
| java.lang |
Provides classes that are fundamental to the Java programming
language.
|
| java.lang.ref |
Provides support for weak references.
|
| java.util |
Contains the collection classes, and the date and time facilities.
|
| javax.microedition.io |
Classes for the Generic Connection framework.
|
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