Streams

Use stream operations to express sophisticated data processing queries.

Now you can create a stream:

• from java.util.Collection, java.util.Map, Array, java.lang.String
• of one element or varargs
• of range from n to m
• just empty

Basic functions

function	implement	tested
for each	✔️	✔️
map	✔️	✔️
filter	✔️	✔️

Sorting features

function	implement	tested
🔍 find first after sorting	✔️	✔️
🔍 find last after sorting	✔️	✔️
✂️ cut from n to m after sorting	✔️	✔️
✂️ cut n from head after sorting	✔️	✔️
✂️ cut n from tail after sorting	✔️	✔️

Collect feature

function	implement	tested
custom	✔️	✔️
to list	✔️	✔️
to group	✔️	✔️