count the occurrence of each character in a string in java code example
Example 1: count occurrences of character in string java 8
String someString = "elephant";
long count = someString.chars().filter(ch -> ch == 'e').count();
assertEquals(2, count);
long count2 = someString.codePoints().filter(ch -> ch == 'e').count();
assertEquals(2, count2);
Example 2: count the number of occurrences of a character in a string java
String line = "apples.oranges.bananas";
int count = line.length() - line.replace(".", "").length();
System.out.println(count);