Example of how naming drives removing duplication (before refactoring)

DuplicationExample.java

public class DuplicationExample {
  
  String buildingType;
  
  public static void classifyBuilding(int floors) {
    if (floors < 5) {
      buildingType = "house";
    } else if (floors < 10) {
      buildingType = "short";
    } else if (floors < 20) {
      buildingType = "tall";
    } else if (floors < 40) {
      buildingType = "very tall";
    } else {
      buildingType = "skyscraper";
    }
  }
}