How to read txt text line by line in java to solve Chinese garbled characters

If java reads txt text that contains Chinese, garbled characters may appear. The solution is:
1. To unify the encoding, the encoding of the java project, the txt text encoding, and the java text encoding in the java project are all unified. utf-8;
2. Use InputStreamReader(new FileInputStream(fileUrl), "utf-8") to set the text to utf-8 again
3. The specific code is as follows

InputStreamReader isr; 
try { 
isr = new InputStreamReader(new FileInputStream(fileUrl), "utf-8"); 
BufferedReader read = new BufferedReader(isr); 
String s=null; 
List<String> list = new ArrayList<String>(); 
while((s=read.readLine())!=null) 
{ 
//System.out.println(s); 
if(s.trim().length()>1){ 
list.add(s.trim()); 
} 
} 

System.out.println("OK！"); 
} catch (UnsupportedEncodingException e) { 
// TODO Auto-generated catch block 
e.printStackTrace(); 
} catch (FileNotFoundException e) { 
// TODO Auto-generated catch block 
e.printStackTrace(); 
} catch (IOException e) { 
// TODO Auto-generated catch block 
e.printStackTrace();

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