Testpad

This repository contains small Java exercises and utilities (single-file programs). Each source file is located in a folder that reflects how you organized practice problems.

Files

• Family cousin/BFS.java: declares package Exam; provides a BFS class with a main method. Implements level-order traversal and a cousin-finding helper. Run with package-qualified name (see commands below).
• Password Checker/PasswordChecker.java: default package; contains PasswordChecker with main that generates case permutations for a sample string.
• Brand Logo Name/Brand_Logo.java: default package; contains Brand_Logo with a main that prints a computed char result.
• Brand Logo Name/Brand_Logo_Name.java: default package (no main); provides companyLogo utility method for the Brand Logo problem.

Quick compile & run (Windows PowerShell)

• For files that declare a package (example: BFS.java declares package Exam;) compile into package folders and run using the package-qualified class name:

javac -d . "Family cousin\BFS.java"
java Exam.BFS

• For files in the default package (no package line) you can compile and run from the workspace root. Because some directories contain spaces, wrap paths in quotes.

Example (compile+run PasswordChecker):

javac "Password Checker\PasswordChecker.java"
java -cp "Password Checker" PasswordChecker

Example (compile+run Brand_Logo):

javac "Brand Logo Name\Brand_Logo.java"
java -cp "Brand Logo Name" Brand_Logo

Notes

• Keep package declarations and filesystem layout consistent: if a source file declares package Exam; the compiled .class must be placed under an Exam directory (the javac -d . approach does this).
• If you prefer running classes without package qualifiers, remove the package line from the source (not recommended for larger projects).