JavaAlgorithms/Others/countwords.java

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import java.util.Scanner;
/**
* You enter a string into this program, and it will return how
* many words were in that particular string
*
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* @author Marcus
*
*/
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public class countwords{
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public static void main(String[] args){
Scanner input = new Scanner(System.in);
System.out.println("Enter your text: ");
String str = input.nextLine();
System.out.println("Your text has " + wordCount(str) + " word(s)");
input.close();
}
public static int wordCount(String s){
if(s.isEmpty() || s == null) return -1;
return s.trim().split("[\\s]+").length;
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}
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}