java - 如何使用 Java 忽略 srt 文件中的空行

Question

我有一个如下所示的 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

给你。步骤:

1) FileInputStream fin = new FileInputStream("line.srt");这是为了下一步把文件拿到bufferedreader

2) BufferedReader reader = new BufferedReader(new InputStreamReader(fin)); 获取文本文件到 buffereder

3) PrintWriter out = new PrintWriter("newline.srt");使用打印器将每一行的字符串写入新的文本文件

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

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

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

7) line = reader.readLine();换行

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();
    }
}

输入:

**
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.    
**

顺便说一下，当你问问题的时候确保你是清楚的，因为你陈述问题的方式我假设 Line1，Line2 等是你的输入文件的一部分，我已经准备了另一个我必须改变的解决方案... 确保您清晰准确，以便获得正确的答案!