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This class contains various methods for manipulating arrays (such as sorting and
searching). This cl
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Note: Do not use this class since it is obsolete. Please use the Map interface
for new implementatio
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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
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This is the central class in the log4j package. Most logging operations, except
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