In Java, simply read and write log or txt file content __java

No more nonsense, straight into the subject: The code is as follows:

1. Read log or txt text information

/**
* Read log or txt information
*
* @param FilePath
* @return
*/
Public list<string> Readlog (String filePath) {
list<string> list = new arraylist<string> ();

  try {
   fileinputstream is = new FileInputStream (filePath);
   inputstreamreader ISR = new InputStreamReader (IS);
   bufferedreader br = new BufferedReader (ISR);
   string Line;
   try {
    while (line = Br.readline ())!= null) {
      if (Line.equals (""))
      continue;
     else
      list.add (line);
&NBSP;&NBSP;&NBSP;&NBSP}
   } catch (IOException e) {
     E.printstacktrace ();
    system.out.println ("Error reading a row of data");
   }
  } catch (FileNotFoundException e) {
   e.printstacktrace ();
&NBSP;&NBSP;&NBSP;SYSTEM.OUT.PRINTLN ("file read path error FileNotFoundException");
  }
  return list;
 }

2. Write log or TXT file content

/**
  * Create a new log or TXT file and write to the content
  *
  * @param filePath
  * @param fileName
  * @par AM MSG
  */
 public void Createlog (String filePath, String fileName, String msg) {
   PrintWriter logprint = null;
  try {
   logprint = new PrintWriter (
     new FileWriter (FilePath + FileName, True), true);
  } catch (IOException e) {
    (new File (FilePath)). mkdir ();
   try {
    logprint = new PrintWriter (new FileWriter (FilePath + fileName,
      true), true);
   } catch (IOException ex) {
    logprint = new PrintWriter (system.err);
    writererrorinfo (Logprint, ex, "Unable to open log file:" + FilePath + fileName);
   }
  }
  writerloginfo (Logprint, msg);
 }

/**
* Write text information to the log file
*
* @param msg
* Log Content
*/
Private synchronized static void Writerloginfo (PrintWriter logprint,
String msg) {
Logprint.println (New SimpleDateFormat ("Yyyy-mm-dd hh:mm:ss")
. Format (New Date ())
+ "" + msg);
}

/**
* Write text information and exceptions to the log file
*
* @param E
* @param msg
*/
Private synchronized static void Writererrorinfo (PrintWriter logprint,
Throwable e, String msg) {
Logprint.println (New SimpleDateFormat ("Yyyy-mm-dd hh:mm:ss")
. Format (New Date ())
+ "" + msg);
E.printstacktrace (Logprint);
}

Note that:

FilePath must be like this: "Disk Number://Folder name//"

FileName must be like this: Test.txt or Test.log.