// a java program that split a sentence into words
import java.util.Scanner;

public class StringBufferedTest {
 public static void main(String[] args) {
  Scanner sc=new Scanner(System.in);
  System.out.print("Please Input a sentence: ");
  String sent=sc.nextLine();  
  String str[]=sent.split(" ");  
  for(int i=0;i<str.length;i++){
   System.out.println(str[i]);
  }
 }
}

Split("Hello  world", ' ') == 2
Split("Hello  world", ' ', false) == 3