Files.readString and writeString

Definition

Java 11 added Files.readString and Files.writeString to read or write a whole text file in one line, with UTF-8 by default.

Example code

Write a file and read it back

import java.nio.file.Files;
import java.nio.file.Path;

class Demo {
    public static void main(String[] args) throws Exception {
        Path file = Files.createTempFile("notes", ".txt");

        Files.writeString(file, "Java 11 makes this easy\nSecond line");
        String text = Files.readString(file);

        System.out.println(text);
        Files.delete(file);
    }
}

// Output:
// Java 11 makes this easy
// Second line