Java: Contoh Membaca File Teks

Kode program di bawah ini memperlihatkan bagaimana membaca isi dari sebuah file teks bernama test.txt dan menampilkan isinya ke console.

import java.io.BufferedReader;
import java.io.File;
import java.io.FileReader;
import java.io.FileNotFoundException;
import java.io.IOException;
 
public class ReadTextFileExample {
   public static void main(String[] args) {
      File file = new File("test.txt");
      StringBuffer contents = new StringBuffer();
      BufferedReader reader = null;

      try {
         reader = new BufferedReader(new FileReader(file));
         String text = null;

        // ulangi sampai semua baris terbaca
        while ((text = reader.readLine()) != null) {
              contents.append(text)
              .append(System.getProperty("line.separator"));
        }
    } catch (FileNotFoundException e) {
        e.printStackTrace();
    } catch (IOException e) {
        e.printStackTrace();
    } finally {
        try {
            if (reader != null) {
                reader.close();
            }
        } catch (IOException e)	{
            e.printStackTrace();
        }
     }
   
     // tampilkan isi file
     System.out.println(contents.toString());
  }
}

Semoga bermanfaat 🙂