@TestpublicvoidgivenWritingToFile_whenUsingDataOutputStream_thenCorrect()throwsIOException {Stringvalue="Hello";FileOutputStreamfos=newFileOutputStream(fileName);DataOutputStreamoutStream=newDataOutputStream(newBufferedOutputStream(fos)); outStream.writeUTF(value); outStream.close();// verify the resultsS...
Writing 3. 序列图 为了更好地理解将字符串写入到本地文件的操作流程,下面是一个序列图,展示了主要的交互步骤: BufferedWriterFileWriterUserBufferedWriterFileWriterUserCreate BufferedWriter objectCreate FileWriter objectWrite content to fileWrite content to file 通过上面的状态图和序列图,读者可以更清晰地了解将字符串...
importjava.io.FileOutputStream;importjava.io.IOException;publicclassWriteToFile{publicstaticvoidmain(String[]args){Stringdata="Hello, World!";try{FileOutputStreamfos=newFileOutputStream("output.txt");fos.write(data.getBytes());fos.close();System.out.println("Data has been written to the file.")...
FileWriter is a convenience class for writing character files.The constructors of this class assume that the default character encoding and the default byte-buffer size are acceptable.To specify these values yourself, construct an OutputStreamWriter on a FileOutputStream. FileWriter针对写字符文件是一个...
Note that when you are done writing to the file, you should close it with the close() method:Example import java.io.FileWriter; // Import the FileWriter class import java.io.IOException; // Import the IOException class to handle errors public class WriteToFile { public static void main(...
The first parameter of the FileWriter is the file name. The second is the encoding used. We use try-with-resources construct to clean resources after we have finished writing. writer.write("Today is a sunny day"); The FileWriter's write method writes text to the file. ...
System.err.println (Error writing to file); } } } Example 3: // FileReadTest.java // User FileReader in JDK1.1 to read a file import java.io.*; class FileReadTest { public static void main (String[] args) { FileReadTest t = new FileReadTest(); ...
Java program to write String into a file usingFiles.writeString()method. importjava.nio.file.Path;importjava.nio.file.Paths;importjava.nio.file.Files;importjava.io.IOException;importjava.nio.file.StandardOpenOption;publicclassMain{publicstaticvoidmain(String[]args){PathfilePath=Paths.get("C:/",...
1. Writing Char Data using BufferedWriter with FileWriter TheFileWriterclass can be used forwriting character files. Wrapping aBufferedWriteraroundFileWriterincreases the performance of the operation. FileWriterfw=null;BufferedWriterbw=null;try{FiletempFile=File.createTempFile("data",".txt");fw=newFileWrite...
The first argument of theFileReaderis the file name. The second is the encoding type. We use try-with-resources construct to clean resources after we have finished writing. int c; while ((c = fr.read(buf)) != -1) { System.out.println(buf); ...