import java.util.Map;
import java.util.regex.Pattern;
 
class Main {
 
    public static void main(String[] args) {
        String text = "hello world, I have an apple, an applet and a pear.";
        String result = censor(text);
        System.out.println(result);
    }
 
    private static String censor(String text) {
        Map<String, String> filters = Map.of(
            "hello", "h*llo",
            "world", "w*rld",
            "apple", "*****"
        );
 
        for (var filter : filters.entrySet()) {
            String pattern = "\\b" + Pattern.quote(filter.getKey()) + "\\b";
            text = text.replaceAll(pattern, filter.getValue());
        }
        return text;
    }
 
}
 

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