import java.util.*;
    import java.io.*;
    import java.util.regex.*;
 
    class Program {
    public static void main (String[] args) throws java.lang.Exception	{
 
    String subject = " 1p   qrn qr2 qst   1a1 4at   qa qb1  st1 sp su";
    String[] yourArray = subject.split("^\\s+|\\s{2,}");
    System.out.println("\n" + "*** Splits ***");
    for (String split : yourArray) System.out.println(split);
 
    } // end main
    } // end Program

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