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Java8MapApi: samples simplified (IDEA-CR-18613)

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This commit is contained in:
Tagir Valeev
2017-02-28 11:09:32 +07:00
parent a48d8431ec
commit 3aa5a5898e
1 changed files with 5 additions and 17 deletions
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resources-en/src/inspectionDescriptions/Java8MapApi.html
+5 -17
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@@ -5,11 +5,7 @@ Inspection detects calls to <code>Map.get</code> which could be replaced with <c
<ul>
<li><b>Map.getOrDefault</b> method could be used to replace the code like this:
<pre>
aValue = map.get(aKey);
if (aValue == null) {
aValue = "none";
}
</pre>
String val = map.containsKey(key) ? map.get(key) : "none";</pre>
</li>
<li><b>Map.computeIfAbsent</b> method could be used to replace the code like this:
<pre>
@@ -17,26 +13,18 @@ Inspection detects calls to <code>Map.get</code> which could be replaced with <c
if (list == null) {
list = new ArrayList&lt;&gt;();
map.put(key, list);
}
</pre>
}</pre>
</li>
<li><b>Map.putIfAbsent</b> method could be used to replace the code like this:
<pre>
String val = map.get(key);
if (val == null) {
map.put(key, newVal);
}
</pre>
if (val == null) map.put(key, newVal);</pre>
</li>
<li><b>Map.merge</b> method could be used to replace the code like this:
<pre>
Integer val = map.get(key);
if (val == null) {
map.put(key, 1);
} else {
map.put(key, val + 1);
}
</pre>
if (val == null) map.put(key, 1);
else map.put(key, val + 1);</pre>
</li>
</ul>