as

    public Calendar seize(TimeInterval ti)
      {
        if(this.intervals==null || intervals.length==0) //sollte array leer sehn
          {
            this.intervals=new TimeInterval[1];
            intervals[0]=ti;
            return this;
          }
        else //überlappen
          {
            TimeInterval temp=null;
            int i=0;

            for (i = 0; i < intervals.length && temp==null; i++)
              {
                if((ti.overlaps(intervals[i])) || (ti.touches(intervals[i])))
                 temp=ti.union(intervals[i]);
                 for(int y=i; y<intervals.length ; y++)
                   {
                     if((temp.overlaps(intervals[y])) || (temp.touches(intervals[y])))
                         temp=ti.union(intervals[y]);

                   }


                  }

                this.release(temp);
                TimeInterval[] tmp= new TimeInterval[intervals.length+1];
               if (i != 0)
                    {
                        System.arraycopy(intervals, 0, tmp, 0, i);
                    }
                    intervals[i] = temp;
                    System.arraycopy(intervals, i , tmp, i + 1, tmp.length - (i + 1));

              }




      }