count the number of words in a string java
public static void main(String[] args)
{
//return the number of words in a string
String example = "This is a good exercise";
int length = example.split(" ").length;
System.out.println("The string is " + length + " words long.");
}java-word-count
import java.util.HashMap;
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import java.util.Locale;
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import java.util.Map;
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public class WordCount {
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public WordCount() {
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}
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public Map<String, Integer> phrase(String text) {
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Map<String, Integer> map = new HashMap<>();
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String[] textParts = text.toLowerCase()
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.trim()
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.replaceAll("[.\\-_:;?!@^&%$§=]", "")
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.replaceAll("'([a-zA-Z0-9]+)'", "$1")
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.replaceAll("^[,\\s]+","")
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.split("[,\\s]+");
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for (String textPart : textParts) {
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if (map.containsKey(textPart)) {
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int counter = map.get(textPart) + 1;
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map.put(textPart, counter);
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} else {
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map.put(textPart, 1);
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}
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}
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return map;
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}
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}
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