Question

I want to create a logger which logs all my messages sent to System.out.

For this I got to know the java Logger class.

But if I understand the purpose of this class, it only allows to write Log messages which are pre defined in the code.

So if I wan’t to create a System.out. logger I would have to create my own logger class.

String dateTime = new String (now("MM-dd-yy_HH!mm!ss"));
                BufferedReader sysLogger = new BufferedReader(new InputStreamReader(System.in));
                BufferedWriter sysWriter = new BufferedWriter(new FileWriter(new File(currentDir+"/logs/commando/CmdLog_"+dateTime+".txt")));
                String readLine = new String();
                String lastLine = new String();
                readLine = sysLogger.readLine();
                while(iSysLog == 1){ //TODO
                    if(lastLine != readLine){
                    sysWriter.write(readLine);
                    lastLine = readLine;
                    }
                    readLine = sysLogger.readLine();
                }

Why is this codenot working?

also: Is there a better way to achieve my goal?

Answer 1

Found the answer in:

Java – Capturing System.err.println or Capturing a PrintStream

Still: how can I set the System.out to the console AND the file?