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Provides access to system-related information and resources including standard
input and output. Ena
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A ConnectException is thrown if a connection cannot be established to a remote
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This class represents a server-side socket that waits for incoming client
connections. A ServerSocke
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A connection to a URL for reading or writing. For HTTP connections, see
HttpURLConnection for docume
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GregorianCalendar is a concrete subclass of Calendarand provides the standard
calendar used by most
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An ExecutorService that executes each submitted task using one of possibly
several pooled threads, n
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