lo4j1.x to log4j2.x Programmatic way how to do?

Question

I am trying to update my project from log4j1.2.17 to log4j2.17.

I am getting 3 errors while doing this migration. I think we can do this using log4j.properties file or log4j.xml file or Programmatic way. I must have to follow Programmatic way.

String fileName = logFilePath + Constants.FILENAME;

PatternLayout layout = new PatternLayout();
layout.setConversionPattern(Constants.PATTERN);
DailyRollingFileAppender appender = new DailyRollingFileAppender(layout, fileName, Constants.DATE_PATTERN);

I am getting error in while changing dependency from 1.2.7 to 2.17 for log4j. Anyone help how to fix this problem?