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Return the contained value, if present, otherwise throw an exception to be
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A concrete subclass of NumberFormat that formats decimal numbers. It has a
variety of features desig
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A specific moment in time, with millisecond precision. Values typically come
from System#currentTime
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Timers schedule one-shot or recurring TimerTask for execution. Prefer
java.util.concurrent.Scheduled
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Patterns are compiled regular expressions. In many cases, convenience methods
such as String#matches
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A Java virtual machine.
A VirtualMachine represents a Java virtual machine to which this Java vir
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A Window object is a top-level window with no borders and no menubar. The
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