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ArrayList is an implementation of List, backed by an array. All optional
operations including adding
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TimeZone represents a time zone offset, and also figures out daylight savings.
Typically, you get a
- AtomicInteger (java.util.concurrent.atomic)
An int value that may be updated atomically. See the java.util.concurrent.atomic
package specificati
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Patterns are compiled regular expressions. In many cases, convenience methods
such as String#matches
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A generic Abstract Window Toolkit(AWT) container object is a component that can
contain other AWT co
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A Rectangle specifies an area in a coordinate space that is enclosed by the
Rectangle object's top-
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