Removing elements from a Map in Java,Very short and simple post on removing elements from a Map in Java. We will be focusing on removing multiple elements and ignore the fact you c...

Useful stream utilities not found in Java,Photo by Karan Chawla on Unsplash A bit of context The standard Java library makes a reasonable attempt to provide useful utility methods ...

Java 8 lambdas: 101,All you need is 5 minutes to grok the Lambda expressions introduced in Java 8. This post acts as a starter by quickly demonstrating how lambdas are super cool i...

What is `map` in a Java Stream,Originally published at www.gunnargissel.com Mapping is how to convert one type of object to another with a stream. Say you have a set of Fruit and y...

Filter Null Values from a List with Java8 Lambda,A common task with Java streams is to clean up the input data so later steps can work without thinking too hard. Likely the #1 most...

Finding Null or Empty String Checks in Java,I have a lot of code like this: if( null == myString || ''.equals(myString)) doAThing(); Enter fullscreen mode Exit fullscreen mode The ...