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8044730: small errors in ConcurrentHashMap and LongAdder docs

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Reviewed-by: martin
This commit is contained in:
Stuart Marks 2014-06-16 17:52:21 -07:00
parent 9501b333f7
commit 7e1185e152
2 changed files with 3 additions and 3 deletions
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4
jdk/src/share/classes/java/util/concurrent/ConcurrentHashMap.java
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@ -133,12 +133,12 @@ import java.util.stream.Stream;
* mapped values are (perhaps transiently) not used or all take the
* same mapping value.
*
* <p>A ConcurrentHashMap can be used as scalable frequency map (a
* <p>A ConcurrentHashMap can be used as a scalable frequency map (a
* form of histogram or multiset) by using {@link
* java.util.concurrent.atomic.LongAdder} values and initializing via
* {@link #computeIfAbsent computeIfAbsent}. For example, to add a count
* to a {@code ConcurrentHashMap<String,LongAdder> freqs}, you can use
* {@code freqs.computeIfAbsent(k -> new LongAdder()).increment();}
* {@code freqs.computeIfAbsent(key, k -> new LongAdder()).increment();}
*
* <p>This class and its views and iterators implement all of the
* <em>optional</em> methods of the {@link Map} and {@link Iterator}

2
jdk/src/share/classes/java/util/concurrent/atomic/LongAdder.java
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@ -57,7 +57,7 @@ import java.io.Serializable;
* frequency map (a form of histogram or multiset). For example, to
* add a count to a {@code ConcurrentHashMap<String,LongAdder> freqs},
* initializing if not already present, you can use {@code
* freqs.computeIfAbsent(k -> new LongAdder()).increment();}
* freqs.computeIfAbsent(key, k -> new LongAdder()).increment();}
*
* <p>This class extends {@link Number}, but does <em>not</em> define
* methods such as {@code equals}, {@code hashCode} and {@code