Java 8 Streams Visualizer

Build stream pipelines visually — filter, map, sort, collect and more. See live output and get AI explanations.

Java

Step 1 Define Your Data Source

Data Type

Input Value (comma-separated integers)

Format: name:dept:salary per employee, comma-separated — e.g. Alice:Engineering:80000,Bob:HR:55000

String mode — streams characters via .chars().mapToObj(c -> (char) c). Great for frequency counting & char analysis.

Format: Key:Value pairs, comma-separated — e.g. Java:5,Python:8,Go:3

Preview:

Step 2 Build Your Pipeline — click chips to add operations

Intermediate ops

Terminal ops

Collectors

Click operations above to build your pipeline — they appear here

Difficulty:

Output

Your output will appear here…