Question

我有一个类似下面的srt文件，我想删除空行：第3行

**
1
Line1: 00:00:55,888 --> 00:00:57,875.  
Line2:Antarctica  
Line3:   
Line4:2  
Line5:00:00:58,375 --> 00:01:01,512  
Line6:An inhospitable wasteland.    
**

        FileInputStream fin = new FileInputStream("line.srt");
        FileOutputStream fout = new FileOutputStream("m/line.srt");
        int i = 0;
        while(((i =fin.read()) != -1)){
            if(i != 0)
            fout.write((byte)i);
        }

Answer 1

你去吧。步骤进行：

1）FileInputStream fin = new FileInputStream("line.srt");这是在下一步将文件送到bufferedreader

2）BufferedReader reader = new BufferedReader(new InputStreamReader(fin));将文本文件提供给buffereader

3）PrintWriter out = new PrintWriter("newline.srt");使用打印编写器写入新文本文件中每行的字符串

4）String line = reader.readLine();阅读下一行

5）while(line != null){ if (!line.trim().equals("")) {检查该行是否为空且该行不为空

6）out.println(line);将输出行（非空）写入输出.srt文件

7）line = reader.readLine();获得新行

8）out.close();最后关闭PrintWriter ......

import java.io.*;
class RemoveBlankLine {
    public static void main(String[] args) throws FileNotFoundException, IOException{
        FileInputStream fin = new FileInputStream("line.srt");
        BufferedReader reader = new BufferedReader(new InputStreamReader(fin));
        PrintWriter out = new PrintWriter("newline.srt");
        int i = 0;
        String line = reader.readLine();
        while(line != null){
                    if (!line.trim().equals("")) {
                        out.println(line);
                    }
                    line = reader.readLine();
                }    
            out.close();
    }
}

INPUT：

**
1
00:00:55,888 --> 00:00:57,875.  
Antarctica  

2  
00:00:58,375 --> 00:01:01,512  
An inhospitable wasteland.    
**

输出：

**
1
00:00:55,888 --> 00:00:57,875.  
Antarctica  
2  
00:00:58,375 --> 00:01:01,512  
An inhospitable wasteland.    
**

顺便说一句，确保在提出问题时你很清楚，因为你陈述问题的方式我假设Line1，Line2等是输入文件的一部分，我准备了另一个我必须改变的解决方案...确保你清晰准确，以便得到正确的答案！

Answer 2

您可以尝试以下内容：

BufferedReader br = null;
BufferedWriter bw = null;

try {
    br = new BufferedReader(new FileReader("line.srt"));
    bw = new BufferedWriter(new FileWriter("m/line.srt"));

    for(String line; (line = br.readLine()) != null; ) {
        if(line.trim().length() == 0) {
            continue;
        } else {
            bw.write(line);
            bw.newLine();
        }
    }

    bw.flush();
    bw.close();
    br.close();

} catch (FileNotFoundException e) {
    e.printStackTrace();
} catch (IOException e) {
    e.printStackTrace();
}

Answer 3

希望这个帮助

public static void main(String[] args) throws FileNotFoundException, IOException {
  Path myPath = Paths.get("e:\\", "1.txt");
  List<String> ls ;
  ls = Files.readAllLines(myPath, StandardCharsets.US_ASCII);
  PrintWriter out = new PrintWriter("e:\\2.txt");

    for (int i = 0; i < ls.size(); i++) {
        String []temp = ls.get(i).split(":");
        if(temp.length>1) {
           out.println(ls.get(i));
        }
    }
    out.close();
}

如何使用Java忽略srt文件中的空行

3 个答案: