/* package whatever; // don't place package name! */
 
import java.util.*;
import java.lang.*;
import java.io.*;
 
/* Name of the class has to be "Main" only if the class is public. */
class Ideone
{
	public static void main (String[] args) throws java.lang.Exception
	{
        String test = "  ala aka aka       aka aka  . \n\n"+
   "kot kot kot kot kot \n"+
  "cos so s   sos ooooo    oo";
        String wynik = test.replaceAll("\\s+", " ");
        System.out.println(wynik);
	}
}

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