FP - Relationship between Applicative Functor and Monad
Applicative Functor has the following two properties. Pure: create a functor from value. Apply: a function taking arguments which are a Functor having a func...
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Java - Open addressing hash implementation in Java
IdentityHashMap class 1 Map<String,String> iMap = new IdentityHashMap<String,String>();
Java - headMap, tailMap and subMap in NavigableMap
NavigableMap collection on Java provide methods to return the view of Map on sorted order of key. The most common methods are headMap, tailMap and subMap. he...
Java - Java 8 Comparator to replace Guava compound comparing
Guava example 1 2 3 Collection.sort(list, Ordering.from((Comparator<Item>) Comparator.comparingInt(item -> item.getId())) .compound(Comparat...
Java - Guava API to implement compareTo with considering sorting ordering
Example of a chained comparison statement. 1 2 3 4 5 6 7 public int compareTo(Foo that) { return ComparisonChain.start() .compare(this.aStri...