About
The addition (sum) function in a Functional programming context
Articles Related
Snippet
Java
- From a collection of object that return an exit status
Integer errors = insertStreamListeners
.stream()
.mapToInt(s -> s.getExitStatus()>0?1:0)
.sum();
- Where myMao is map where the values are integers
Integer tot = myMap
.values()
.stream()
.mapToInt(s->s)
.sum()