count the number of words in a string java
public static void main(String[] args)
{
//return the number of words in a string
String example = "This is a good exercise";
int length = example.split(" ").length;
System.out.println("The string is " + length + " words long.");
}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");
}Copyright © 2021 Codeinu
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