Explore >> Select a destination


You are here

studiofreya.org
| | blog.scaledcode.com
1.4 parsecs away

Travel
| | A dive into chapter 52 of Effective Java
| | bruceeckel.com
1.3 parsecs away

Travel
| |
| | konradreiche.com
2.5 parsecs away

Travel
| | Since most of the Java code I wrote in the past was on Android I was not able to enjoy too many Java 8 features yet. Though recently I wrote a microservice in Java using Spring Boot where I could make full use of lambdas and functional interfaces. The following method, for instance, returns the sum of all transactions for a specified instance by traversing their children. @RequestMapping(value = "/transaction/sum/{id}", method = RequestMethod.GET) BigDecimal Sum sum(@PathVariable long id) { List transactions = new ArrayList<>(); Transaction current = repository.find(id); while (current != null) { transactions.add(current); current = current.getChild(); } return transactions.stream().map(t -> t.getAmount()) .reduce(BigDecimal.ZERO, BigDecimal::add); } As some...
| | www.ralfj.de
25.3 parsecs away

Travel
|