DataClass dataClass = new DataClass();
System.out.println(dataClass.getIntProperty());
System.out.println(dataClass.toString());
AllArgsConstructorClass allArgsClass = AllArgsConstructorClass.of(12, 0.1f, "ddd");
System.out.println(allArgsClass.hashCode());
System.out.println(allArgsClass.toString());
ReqArgsConstructorClass reqArgsClass = new ReqArgsConstructorClass(2.0f, "data data");
System.out.println(reqArgsClass.hashCode());
System.out.println(reqArgsClass.toString());