*/publicstaticvoidappendMethodB(String fileName, String content){try{//打开一个写文件器,构造函数中的第二个参数true表示以追加形式写文件,如果为 true,则将字节写入文件末尾处,而不是写入文件开始处FileWriterwriter=newFileWriter(fileName,true); writer.write(content); writer.close(); }catch(IOException ...
importjava.io.FileWriter;importjava.io.IOException;publicclassAppendToFile{publicstaticvoidmain(String[]args){// 创建FileWriter对象,第二个参数为true表示追加模式try{FileWriterwriter=newFileWriter("test.txt",true);// 写入内容到文件writer.write("Hello, World!\n");// 关闭文件流writer.close();System....
\n";// 要追加的内容try(BufferedWriterwriter=newBufferedWriter(newFileWriter(filePath,true))){// 使用 FileWriter 的构造函数,第二个参数设置为 true,表示以追加模式打开文件writer.write(contentToAppend);// 写入内容System.out.println("内容已成功追加到文件中。");}catch(IOExceptione){e.printStackTrace()...
publicclassWriteFileExample { publicstaticvoidmain(String[] args) { File file =newFile("c:/newfile.txt"); String content ="This is the text content"; try(FileOutputStream fop =newFileOutputStream(file)) { // if file doesn't exists, then create it if(!file.exists()) { file.createNe...
; try { FileWriter fw = new FileWriter(filename, true); // 设置追加写入模式 fw.write(content); fw.close(); System.out.println("Data has been appended to the file."); } catch (IOException e) { e.printStackTrace(); } } } 复制代码 在上面的示例中,使用FileWriter的构造函数FileWriter(...
public void whenWriteStringUsingBufferedWritter_thenCorrect() throws IOException { String str = "Hello"; BufferedWriter writer = new BufferedWriter(new FileWriter(fileName)); writer.write(str); writer.close(); }Copy The output in the file will be: HelloCopy We can then append a String to the...
fos.write(tb); } We create an instance of theFileOutputStreamwithappendparameter set to true and use itswritemethod. Append to file with Files Thejava.nio.file.Filesclass is a convenient class to easily append data to a file. Main.java ...
("javaio-appendfile.txt"); //if file doesnt exists, then create it if(!file.exists()){ file.createNewFile(); } //true = append file FileWriter fileWritter = new FileWriter(file.getName(),true); BufferedWriter bufferWritter = new BufferedWriter(fileWritter); bufferWritter.write(data); ...
//将一个字符串写入到文件Files.write(path,content.getBytes(StandardCharsets.UTF_8));//向指定文件追加内容Files.write(path,content.getBytes(StandardCharsets.UTF_8),StandardOpenOption.APPEND);//将一个行的集合写入到文件中Files.write(path,lines,StandardCharsets.UTF_8,StandardOpenOption.APPEND); ...
try {fw.flush();pw.close();fw.close();} catch (IOException e) {e.printStackTrace();}}方法2：public static void method2(String file, String conent) {BufferedWriter out = null;try {out = new BufferedWriter(new OutputStreamWriter(new FileOutputStream(file, true)));out.write(...