Java ENUM Sort

public enum Bucket{ CONFIRMED("conf","Cf",7), FINAL("Final","Fi",5), PROJECTED("Proj","Pr",4), NULL("","",0); private String value; private String code; private int confidenceLevel; Bucket(String value, String code,String confidenceLevel){ this.code=code; this.value=value; this.confidenceLevel=confidenceLevel; } public String value(){ return this.value;} public String code() { return this.code;} public int confidenceLevel(){ return this.confidenceLevel;} private void checEnum(){ SortedMap map = new TreeMap (); for(Bukect bucketObj : Bucket.values()){ if(!"".equalsIgnoeCase(bucketObj.value())) { map.put(bucketObj.confidenceLevel(), bucketObjj.value()); } System.out.println(map.keySet()); } }