java treemapTreeMap类的size()方法 (TreeMap Class size() method) size() method is available in java.util package. size()方法在java.util包中可用。 size() method is used to return the size of this TreeMap or in other words, we can say it returns the number of…
java enummapEnumMap类的size()方法 (EnumMap Class size() method) size() method is available in java.util package. size()方法在java.util包中可用。 size() method is used to return the size of this enum map (i.e. it returns the number of key-value pairs exists…
java reader读取器类的reset()方法 (Reader Class reset() method) reset() method is available in java.io package. reset()方法在java.io包中可用。 reset() method is used to reset this stream to the mark set by mark() method most recently. reset()方法用于将此流重…