how to count words in string in java
String str = "I am happy and why not and why are you not happy and you should be"; String [] arr = str.split(" "); Map<String, Integer> map = new HashMap<>(); for (int i=0 ; i < arr.length ; i++){ if (!map.containsKey(arr[i])){ map.put(arr[i],1); } else{ map.put(arr[i],map.get(arr[i])+1); } } for(Map.Entry<String, Integer> each : map.entrySet()){ System.out.println(each.getKey()+" occures " + each.getValue() + " times"); }