printDuplicates

    public static void printDuplicates (Scanner input){
        while(input.hasNextLine()){
            Scanner line=new Scanner (input.nextLine());
            String first=line.next();
            String second=line.next();
            while(line.hasNext()){
                int x=0;
                while(first.equals(second)){
                    x++;
                    first=second;
                    if(line.hasNext())
                        second=line.next();
                    else
                        second = "";
                }
                if(x>0){
                    System.out.print(first+"*"+(x+1)+" ");
                    first=second;
                    if(line.hasNext())
                        second=line.next();
                    else
                        second = "";

                }
                if(x==0){
                    first=second;
                    if(line.hasNext())
                        second=line.next();
                    else
                        second = "";

                }
            }
            System.out.println();
        }
    }