What is the simplest way to write a text file in Java?

Question

I am wondering what is the easiest (and simplest) way to write a text file in Java. Please be simple, because I am a beginner :D

I searched the web and found this co

Answer 1

String content = "your content here";
Path path = Paths.get("/data/output.txt");
if(!Files.exists(path)){
    Files.createFile(path);
}
BufferedWriter writer = Files.newBufferedWriter(path);
writer.write(content);

Answer 2

In Java 11 or Later, writeString can be used from java.nio.file.Files,

String content = "This is my content";
String fileName = "myFile.txt";
Files.writeString(Paths.get(fileName), content); 

With Options:

Files.writeString(Paths.get(fileName), content, StandardOpenOption.CREATE)

More documentation about the java.nio.file.Files and StandardOpenOption

Answer 3

Files.write() the simple solution as @Dilip Kumar said. I used to use that way untill I faced an issue, can not affect line separator (Unix/Windows) CR LF.

So now I use a Java 8 stream file writing way, what allows me to manipulate the content on the fly. :)

List<String> lines = Arrays.asList(new String[] { "line1", "line2" });

Path path = Paths.get(fullFileName);
try (BufferedWriter writer = Files.newBufferedWriter(path)) {   
    writer.write(lines.stream()
                      .reduce((sum,currLine) ->  sum + "\n"  + currLine)
                      .get());
}     

In this way, I can specify the line separator or I can do any kind of magic like TRIM, Uppercase, filtering etc.