ReqArgsConstructorClass reqArgsClass = new ReqArgsConstructorClass(2.0f, "data data");
System.out.println(reqArgsClass.hashCode());
System.out.println(reqArgsClass.toString());
LogClass logClass = new LogClass();
logClass.doSomething();
Log4jClass log4jClass = new Log4jClass();
log4jClass.doSomething();