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Count Files Recursively in Java
- Working with file systems in Java often involves counting files recursively in a directory tree.
- Java provides various methods for this task, including traditional java.io.File and modern java.nio.file package.
- The goal is to navigate nested directories, differentiate files from folders, handle exceptions, and scale well.
- A traditional recursive method using java.io.File involves traversing the directory tree and incrementing a count for each file.
- The program checks directory validity, recursively counts files, and prints the total count using java.io.File.
- Java NIO's Files.walk() method introduced in Java 7 offers a modern approach to count files using a Stream of Paths.
- The FileCounterNIO program validates the directory path, filters out directories, and counts regular files using Files.walk().
- Files.walk() combined with Stream API provides a concise and efficient way to count files in a directory.
- The NIO approach is preferred for its readability, scalability, and performance advantages, especially in large directory structures.
- Both traditional recursive methods and modern NIO approach effectively solve the file-counting problem in Java.
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