File Class

File and directory operations

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File Class

The File class represents file and directory pathnames and provides methods to work with them.

Code Examples

Basic File operations

java
1
2File file = new File("test.txt");
3System.out.println(file.exists());
4System.out.println(file.isFile());
5System.out.println(file.getAbsolutePath());
6

Use Cases

  • Checking file existence
  • Directory traversal

Common Mistakes to Avoid

  • Assuming File reads file content
  • Hardcoding file paths