To read a file line by line we can make use of the static lines(Path path) method from the Files class from the java.nio.file package.
Let's take a look at an example.
import java.io.IOException;
import java.nio.file.Files;
import java.nio.file.Paths;
import java.util.stream.Stream;
public class Main {
public static void main(String[] args) {
String filePath = "/Users/dev/Documents/Java-Projects/demo/src/data.txt";
try (Stream<String> lines = Files.lines(Paths.get(filePath))) {
lines.forEach(System.out::println);
} catch (IOException e) {
System.out.println("Error occurred while reading the file!");
e.printStackTrace();
}
}
}
![Output - Read file line by line using Stream API Output - Read file line by line using Stream API](https://code2care.org/java/read-file-line-by-line-java-8-stream-api/images/Output - Read file line by line using Stream API.jpg)
Note that lines() method was added to Files class in Java 8. It returns a Stream object using which we can iterate over the lines using the forEach() method.
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Rakesh (He/Him) has over 14+ years of experience in Web and Application development. He is the author of insightful How-To articles for Code2care.
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