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Java IO & NIO - Files.write() Examples

Java IO & NIO Java Java API 

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Class:

java.nio.file.Files

java.lang.Objectjava.lang.Objectjava.nio.file.Filesjava.nio.file.FilesLogicBig

Methods:

public static Path write(Path path,
                         byte[] bytes,
                         OpenOption... options)
                  throws IOException

Writes bytes to a file.

Parameters:
path - the path to the file
bytes - the byte array with the bytes to write
options - options specifying how the file is opened
Returns:
the path


public static Path write(Path path,
                         Iterable<? extends CharSequence> lines,
                         OpenOption... options)
                  throws IOException

public static Path write(Path path,
                         Iterable<? extends CharSequence> lines,
                         Charset cs,
                         OpenOption... options)
                  throws IOException
Parameters:
path - the path to the file
lines - an object to iterate over the char sequences
cs - the charset to use for encoding
options - options specifying how the file is opened
Returns:
the path



Examples


package com.logicbig.example.files;

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

public class WriteExample {

    public static void main(String... args) throws IOException {
        Path path = Files.createTempFile("test-file", ".txt");
        Files.write(path, "some test content...".getBytes());

        byte[] bytes = Files.readAllBytes(path);
        System.out.println(new String(bytes));
    }
}

Output

some test content...




package com.logicbig.example.files;

import java.io.IOException;
import java.nio.file.Files;
import java.nio.file.Path;
import java.util.Arrays;

public class WriteExample2 {

    public static void main(String... args) throws IOException {
        Path path = Files.createTempFile("test-file", ".txt");
        Iterable<String> iterable = Arrays.asList("line1", "line2");
        Files.write(path, iterable);

        byte[] bytes = Files.readAllBytes(path);
        System.out.println(new String(bytes));

    }
}

Output

line1
line2

See Also