public class SimilarityLevel extends FuzzyAlgorithm
Represents an algorithm of the fuzzy search that specifies the similarity level. The similarity level algorithm calculates the maximum number of mistakes for a word as inversely proportional to the word length.
The example demonstrates a typical usage of the class.
```
String indexFolder = "c:\\MyIndex\\";
String documentsFolder = "c:\\MyDocuments\\";
String query = "Einstein";
Index index = new Index(indexFolder); // Creating an index in the specified folder
index.add(documentsFolder); // Indexing documents from the specified folder
SearchOptions options = new SearchOptions();
options.getFuzzySearch().setEnabled(true); // Enabling the fuzzy search
options.getFuzzySearch().setFuzzyAlgorithm(new SimilarityLevel(0.8)); // Creating the fuzzy search algorithm
// This function specifies 0 as the maximum number of mistakes for words from 1 to 4 characters.
// It specifies 1 as the maximum number of mistakes for words from 5 to 9 characters.
// It specifies 2 as the maximum number of mistakes for words from 10 to 14 characters. And so on.
SearchResult result = index.search(query, options); // Search in index
```