Sample operator example

Author: aNNiMON

app/src/main/java/com/annimon/java8streamexample/MainActivity.java

@@ -136,6 +136,10 @@ private void action(String action) {
                 // Take while word length < N
                 stream = stream.takeWhile(p -> p.getWord().length() < filterValue);
                 break;
+            case "sample %N":
+                // Step with N
+                stream = stream.sample(filterValue);
+                break;
             case "group":
                 // Show 5 words by each group
                 stream = IntStream.range('a', 'z'+1)

app/src/main/res/values/strings.xml

@@ -21,6 +21,7 @@
         <item>Limit N rows</item>
         <item>Drop while length &lt; N</item>
         <item>Take while length &lt; N</item>
+        <item>Step by N</item>
         <item>Group by first character</item>
         <item>Group by first character 2</item>
         <item>Sort by translate</item>
@@ -40,6 +41,7 @@
         <item>limit %N</item>
         <item>drop while %N</item>
         <item>take while %N</item>
+        <item>sample %N</item>
         <item>group</item>
         <item>group by</item>
         <item>sort by</item>