Example: CharacterFrequencyTraditional in Java

C
C++
C#
Java
Python
PHP
// CharacterFrequencyTraditional
import java.util.HashMap;
import java.util.Map;

// Main class containing the entry point of the program
public class Main {
    public static void main(String[] args) {
        String text = "hello world";
        Map<Character, Integer> charFrequencies = new HashMap<>();

        // Step 1: Iterate over each character in the string
        for (char ch : text.toCharArray()) {
            // Step 2: Update the count for the current character
            charFrequencies.put(ch, charFrequencies.getOrDefault(ch, 0) + 1);
        }

        // Step 3: Print the resulting map
        System.out.println("Traditional approach frequencies: " + charFrequencies);
    }
}