@SuppressWarnings("AnnotateFormatMethod")
  default TerminalPrinter printFormat(String format, Object... args) {
    print(String.format(format, args));
    return this;
  }
The interface responsible for printing to the terminal.
hbase-hbtop/src/main/java/org/apache/hadoop/hbase/hbtop/terminal/TerminalPrinter.java