theLogicBlog

try {
  BufferedWriter writer = new BufferedWriter(new FileWriter("file.txt", true));  // true defines append to file instead of overwrite
  writer.write("text into file" + "\n");
  writer.close();
} catch (Exception e) {
  System.out.println(e.getMessage());
}

import java.util.*;
import java.text.*;

// actual date and time
Date d = new Date();
SimpleDateFormat f = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");
String now = f.format(d));

// other time zone
df.setTimeZone(TimeZone.getTimeZone("America/New_York");
String nowNY = f.format(d));