check how many of a word is in a string
function countOccurences(str,word)
{
// split the string by spaces in a
String a[] = str.split(",");
// search for pattern in a
int count = 0;
for (int i = 0; i < a.length; i++)
{
// if match found increase count
if (word.equals(a[i]))
count++;
}
return count;
}how to find occurrence of words in string
HOW TO COUNT OCCURRENCE OF THE WORDS IN STRING
(It can also be solved by using nested for loops...)
String str = "I am happy and why not and why are you not happy 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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