10. print butterfly star pattern. -basically, spaces = 2*(n-i) --> which represent even spaces. start upper half part--> from (1 to n). start lower half part--> from (n to 1).

$ cat /etc/issue Ubuntu 20.04 LTS \n \l $ sudo apt update $ sudo apt install openjdk-11-jdk $ which java /usr/bin/java This software is provided 'as-is', without any express or implied warranty. In no ...

Unlock the full InfoQ experience by logging in! Stay updated with your favorite authors and topics, engage with content, and download exclusive resources. In this episode, Thomas Betts speaks with Ian ...

Learn how to use pattern-matching features in your Java programs, including pattern matching with switch statements, when clauses, sealed classes, and a preview of primitive type pattern matching in ...