Answers for "program to count the number of words in a string"

Java

how to count number of words in a string

String name = "Carmen is a fantastic play"; //arbitrary sentence
        
        int numWords = (name.split("\\s+")).length; //split string based on whitespace
                                                //split returns array - find legth of array
        
        System.out.println(numWords);

Posted by: Guest on June-06-2020

Source

how to count words in string

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");
        }

Posted by: Guest on January-22-2021

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