Count occurrence of a given character in a string using Stream API in Java
Given a string and a character, the task is to make a function which counts the occurrence of the given character in the string using Stream API.
Input: str = "geeksforgeeks", c = 'e'
'e' appears four times in str.
Input: str = "abccdefgaa", c = 'a'
'a' appears three times in str.
- Convert the string into character stream
- Check if the character in the stream is the character to be counted using filter() function.
- Count the matched characters using the count() function
Below is the implementation of the above approach:
.filter(c -> c == ch)
String str =
Related Article: Program to count occurrence of a given character in a string
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