public void initGrammar(BufferedReader bufferedReader){ String line = ""; try { line = bufferedReader.readLine(); String[] temp = line.split(" "); Global.NotTerminal.add(temp[0]); Production sproduction = new Production(temp[0]); for(int i = 2;i<temp.length;i++){ Global.Terminal.add(temp[i]); sproduction.right.add(temp[i]); } Global.productionList.add(sproduction); Global.start = temp[0]; while ((line = bufferedReader.readLine()) != null){ temp = line.split(" "); Global.NotTerminal.add(temp[0]); Production production = new Production(temp[0]); for(int i = 2;i<temp.length;i++){ Global.Terminal.add(temp[i]); production.right.add(temp[i]); } Global.productionList.add(production); } Global.Terminal.removeAll(Global.NotTerminal); }catch (Exception e){ e.printStackTrace(); } }转python

按行解释以下代码：public void loadData(String fileName) { try (BufferedReader reader = new BufferedReader(new FileReader(fileName))) { String line; while ((line = reader.readLine()) != null) { String[] fields = line.split(","); String yid = fields[

首先，方法会创建一个 BufferedReader 对象来读取文件内容，利用 try-with-resources 语句可以确保程序结束后会自动关闭 BufferedReader 对象，从而避免资源泄漏。然后，方法会逐行读取文件内容，每次读取一行数据，...

line = reader.readLine()这一句是什么意思

line = reader.readLine() 这一行代码的意思是从输入流（reader）中读取一行文本，并将其赋值给变量 line。在Java中，BufferedReader 类提供了 readLine() 方法用于逐行读取文本。该方法会读取输入流中...

BufferedReader.readLine()异常java.nio.charset.MalformedInputException: Input length = 2

public static void main(String[] args) { try { BufferedReader bufferedReader = Files.newBufferedReader(Paths.get("d://mylog.log"), Charset.forName("UTF-8")); String line = ""; while ((line = ...

优化这段代码直到可以运行import java.io.BufferedReader;import java.io.FileReader;import java.io.IOException;public class Exp6 { public static void main(String[] args) { try (FileReader reader = new FileReader("filename.txt"); BufferedReader bufferedReader = new BufferedReader(reader)) { String line; while ((line = bufferedReader.readLine()) != null) { System.out.println(line); } } catch (IOException e) { e.printStackTrace(); } }}

public static void main(String[] args) { try (FileReader reader = new FileReader("C:/temp/filename.txt"); BufferedReader bufferedReader = new BufferedReader(reader)) { String line; while ((line =...

BufferedReader reader = new BufferedReader(new InputStreamReader(input)); try { String readLine = reader.readLine(); String[] split = readLine.split(" "); // if (split.length != 3) { return null; } System.out.println(readLine); return split[1]; } catch (IOException e) { e.printStackTrace(); } return null; }解释这段代码

String[] split = readLine.split(" "); // 将读取到的数据按照空格分割成字符串数组 if (split.length != 3) { // 如果分割后的数组长度不为3，则说明输入的数据格式不正确，返回null return null; } System....

import java.io.*; public class BufferedReaderTester { public static void main(String[] args) { String fileName="D://Hello.txt"; String line; try{ BufferedReader in =new BufferedReader(new FileReader(fileName)); line=in.readLine(); while(line!=null) { System.out.println(line); line=in.readLine();// TODO Auto-generated method stub } in.close(); } catch(IOException iox) { System.out.println("Problem reading"+fileName); } } }加入读出数据并显示的代码

public static void main(String[] args) { String fileName = "D://Hello.txt"; String line; List<String> lines = new ArrayList(); try { BufferedReader in = new BufferedReader(new FileReader...

BufferedReader.readline卡死

BufferedReader的readLine()函数是一个阻塞函数，当没有数据可读取时，它会一直阻塞在那里，而不是返回null。这可能导致程序卡死的情况发生。为了避免这种情况，我们可以使用以下方法来解决： 1. 设置超时时间：...

BufferedReader reader = new BufferedReader(new FileReader(htmlFile)); StringBuilder stringBuilder = new StringBuilder(); String line = null; while ((line = reader.readLine()) != null) { stringBuilder.append(line); stringBuilder.append(System.lineSeparator()); } reader.close();怎么处理乱码问题

while ((line = reader.readLine()) != null) { stringBuilder.append(line); stringBuilder.append(System.lineSeparator()); } reader.close(); String html = stringBuilder.toString(); 在上面的示例中，...

优化这段代码public void getNames() throws IOException { FileReader fr=null; try { fr=new FileReader("E:\\java17\\java file\\StudentTest\\Message.txt"); }catch (FileNotFoundException ex){ ex. printStackTrace(); } BufferedReader br=new BufferedReader(fr); String line=""; while (( line=br.readLine())!=null) { if (line. contains("账号")) { Name[i] = line.substring(line.indexOf("：") + 1); i++; } else { continue; } } }

public void getNames() throws IOException { try (BufferedReader br = new BufferedReader(new FileReader("E:\\java17\\java file\\StudentTest\\Message.txt"))) { String line = ""; while ((line = br....

bufferedreader.readline

回答1：</h3><br/>bufferedreader.readline是Java中的一个方法，用于从输入流中读取一行文本。它会一直读取，直到遇到换行符或者文件结束符。读取到的文本会包括换行符在内，并返回一个字符串。如果输入流已经结束，...

import java.io.*; public class Exp6 { public static void main(String[] args) { try { // 创建一个字符输入流 FileReader reader = new FileReader("filename.txt"); // 创建一个缓冲字符输入流 BufferedReader bufferedReader = new BufferedReader(reader); // 读取文件内容并输出到控制台 String line; while ((line = bufferedReader.readLine()) != null) { System.out.println(line); } // 关闭流 bufferedReader.close(); reader.close(); } catch (IOException e) { e.printStackTrace(); } } }

public static void main(String[] args) { try (FileReader reader = new FileReader("filename.txt"); BufferedReader bufferedReader = new BufferedReader(reader)) { String line; while ((line = ...

BufferedReader br = new BufferedReader(new InputStreamReader(System.in));

public static void main(String[] args) { BufferedReader br = new BufferedReader(new InputStreamReader(System.in)); try { System.out.print("请输入一行文本："); String line = br.readLine(); System...

import java.io.BufferedReader; import java.io.FileReader; import java.io.IOException; import java.util.LinkedList; public class ReverseFileReader { public static void main(String[] args) throws IOException { String fileName = "example.txt"; LinkedList<String> lines = new LinkedList<>(); try (BufferedReader reader = new BufferedReader(new FileReader(fileName))) { String line = null; while ((line = reader.readLine()) != null) { lines.addFirst(line); if (line.contains("friendList")) { break; } } } // 打印链表中的每一行 for (String line : lines) { System.out.println(line); } } }

2. 使用 BufferedReader 读取文件内容，将每一行内容添加到链表的头部。 3. 如果读取到包含字符串 "friendList" 的行，则停止读取。 4. 遍历链表，按顺序输出每一行的内容，即实现了倒序输出文件内容的功能。该...

public static void main(String[] args) { String originData = ""; try { 此处补全代码 } catch (Exception e) { e.printStackTrace(); } }

public static void main(String[] args) { String originData = ""; try { // 读取文件内容 File file = new File("data.txt"); BufferedReader reader = new BufferedReader(new FileReader(file)); String ...

BufferedReader in = new BufferedReader(new InputStreamReader(clientSocket.getInputStream())); String line; while ((line = in.readLine()) != null && !line.isEmpty()) { System.out.println(line); }能不能解析请求体

while ((line = in.readLine()) != null && !line.isEmpty()) { if (line.startsWith("Content-Length:")) { contentLength = Integer.parseInt(line.substring("Content-Length:".length()).trim()); } System....

如何将BufferedReader.readline方法读取的的内容转化成ByteBuf

String line = reader.readLine(); while (line != null) { buffer.put(line.getBytes()); buffer.put(System.getProperty("line.separator").getBytes()); line = reader.readLine(); } 3. 将ByteBuffer...

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按行解释以下代码：public void loadData(String fileName) { try (BufferedReader reader = new BufferedReader(new FileReader(fileName))) { String line; while ((line = reader.readLine()) != null) { String[] fields = line.split(","); String yid = fields[

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public static void main(String[] args) { String originData = ""; try { 此处补全代码 } catch (Exception e) { e.printStackTrace(); } }

BufferedReader in = new BufferedReader(new InputStreamReader(clientSocket.getInputStream())); String line; while ((line = in.readLine()) != null && !line.isEmpty()) { System.out.println(line); }能不能解析请求体

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