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How to extract each (English) word from a string using regular expression in Java?
The regular expression “[a-zA-Z]+” matches one or the English alphabet. Therefore, to extract each word in the given input string −
Compile the above expression of the compile() method of the Pattern class.
Get the Matcher object bypassing the required input string as a parameter to the matcher() method of the Pattern class.
Finally, for each match get the matched characters by invoking the group() method.
Example
import java.util.Scanner;
import java.util.regex.Matcher;
import java.util.regex.Pattern;
public class EachWordExample {
public static void main(String[] args) {
Scanner sc = new Scanner(System.in);
System.out.println("Enter sample text: ");
String data = sc.nextLine();
String regex = "[a-zA-Z]+";
//Creating a pattern object
Pattern pattern = Pattern.compile(regex);
//Creating a Matcher object
Matcher matcher = pattern.matcher(data);
System.out.println("Words in the given String: ");
while(matcher.find()) {
System.out.println(matcher.group()+" ");
}
}
}Output
Enter sample text: Hello this is a sample text Words in the given String: Hello this is a sample text
Updated on: 21-Nov-2019
1K+ Views
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