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File Class
Last Updated : 26 May, 2026
title: File Class in Java
File Handling32 words3 headingsExamples included
title: File Class in Java description: java.io.File class ka use
java.io.File — file/directory ke baare mein information aur operations.
Create karna
java exampleWoHoTech
File f1 = new File("test.txt"); // Relative path
File f2 = new File("C:/Users/user/test.txt"); // Absolute path
File f3 = new File("C:/Users/user", "test.txt"); // Parent + child
File dir = new File("myFolder");File Information
java exampleWoHoTech
File f = new File("test.txt");
f.getName() // "test.txt"
f.getPath() // "test.txt" (given path)
f.getAbsolutePath() // "C:/project/test.txt"
f.getParent() // Parent directory path
f.length() // File size in bytes
f.lastModified() // Last modified timestamp
f.exists() // File/dir exist karta hai?
f.isFile() // Regular file hai?
f.isDirectory() // Directory hai?
f.canRead() // Read permission?
f.canWrite() // Write permission?
f.isHidden() // Hidden hai?File Operations
java exampleWoHoTech
File f = new File("newfile.txt");
// Create
f.createNewFile(); // New empty file, returns boolean
// Delete
f.delete(); // Delete file/empty dir
// Rename/Move
File newFile = new File("renamed.txt");
f.renameTo(newFile);
// Directory create
File dir = new File("myDir");
dir.mkdir(); // Single directory
dir.mkdirs(); // Nested directories create karo
// Directory listing
File folder = new File(".");
String[] files = folder.list(); // Names
File[] fileObjects = folder.listFiles(); // File objects
// Filter listing
File[] javaFiles = folder.listFiles(f2 -> f2.getName().endsWith(".java"));Exam Focus
Revise definitions, diagrams, examples, and short-answer points for File Class.
Interview Use
Prepare one clear explanation, one practical example, and one common mistake for this Java topic.
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java, java programming, core java, java master course, java notes, master, course, file
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