用java怎么创建一个文件并向该文件写文本内容

最佳答案:

PrintWriter writer = new PrintWriter("the-file-name.txt", "UTF-8");
writer.println("The first line");
writer.println("The second line");
writer.close();

byte data[] = ...
FileOutputStream out = new FileOutputStream("the-file-name");
out.write(data);
out.close();

File

List<String> lines = Arrays.asList("The first line", "The second line");
Path file = Paths.get("the-file-name.txt");
Files.write(file, lines, Charset.forName("UTF-8"));
//Files.write(file, lines, Charset.forName("UTF-8"), StandardOpenOption.APPEND);

byte data[] = ...
Path file = Paths.get("the-file-name");
Files.write(file, data);
//Files.write(file, data, StandardOpenOption.APPEND);

其他的答案（1）:

try (Writer writer = new BufferedWriter(new OutputStreamWriter(
new FileOutputStream("filename.txt"), "utf-8"))) {
writer.write("something");
}

FileUtils.writeStringtoFile(..)

Files.write(..)

FileWriter

Writer writer = null;

try {
writer = new BufferedWriter(new OutputStreamWriter(
new FileOutputStream("filename.txt"), "utf-8"));
writer.write("Something");
} catch (IOException ex) {
// report
} finally {
try {writer.close();} catch (Exception ex) {/*ignore*/}
}

Reading,
Writing, and Creating Files

其他答案（2）：

public class Program {
public static void main(String[] args) {
String text = "Hello world";
BufferedWriter output = null;
try {
File file = new File("example.txt");
output = new BufferedWriter(new FileWriter(file));
output.write(text);
} catch ( IOException e ) {
e.printStackTrace();
} finally {
if ( output != null ) output.close();
}
}
}

其他答案（3）：

java.nio.file.Files

Charset utf8 = StandardCharsets.UTF_8;
List<String> lines = Arrays.asList("1st line", "2nd line");
byte[] data = {1, 2, 3, 4, 5};

try {
Files.write(Paths.get("file1.bin"), data);
Files.write(Paths.get("file2.bin"), data,
StandardOpenOption.CREATE, StandardOpenOption.APPEND);
Files.write(Paths.get("file3.txt"), "content".getBytes());
Files.write(Paths.get("file4.txt"), "content".getBytes(utf8));
Files.write(Paths.get("file5.txt"), lines, utf8);
Files.write(Paths.get("file6.txt"), lines, utf8,
StandardOpenOption.CREATE, StandardOpenOption.APPEND);
} catch (IOException e) {
e.printStackTrace();
}

其他答案（4）：

import java.io.BufferedWriter;
import java.io.File;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.OutputStreamWriter;
import java.io.Writer;

public class writer {
public void writing() {
try {
//Whatever the file path is.
File statText = new File("E:/Java/Reference/bin/images/statsTest.txt");
FileOutputStream is = new FileOutputStream(statText);
OutputStreamWriter osw = new OutputStreamWriter(is);
Writer w = new BufferedWriter(osw);
w.write("POTATO!!!");
w.close();
} catch (IOException e) {
System.err.println("Problem writing to the file statsTest.txt");
}
}

public static void main(String[]args) {
writer write = new writer();
write.writing();
}
}