Thread: Read and write file in Java

Read file is at the first part and write file is at the second part. Try it
This example is at Learn Your Java From Here: Read and write file
There are more example or Java learning in Learn Your Java From Here

		// get which file you want to read and write
		File file = new File("D://test.txt");
 
		try {
 
			// check whether the file is existed or not
			if (file.exists()) {
 
				// create a new file if the file is not existed
				file.createNewFile();
			}
 
			// new a writer and point the writer to the file
			BufferedWriter writer = new BufferedWriter(new FileWriter(file));
 
			// writer the content to the file
			writer.write("I write something to a file.");
 
			// always remember to close the writer
			writer.close();
			writer = null;
		} catch (IOException e) {
			e.printStackTrace();
		}
 
		try {
 
			// new a reader and point the reader to the file
			BufferedReader reader = new BufferedReader(new FileReader(file));
 
			String line = "";
			System.out.println("Content of the file\n================================");
			while ((line = reader.readLine()) != null) {
				System.out.println(line);
			}
			reader.close();
			reader = null;
		} catch (FileNotFoundException e) {
			e.printStackTrace();
		} catch (IOException e) {
			e.printStackTrace();
		}