public String[] getSets0(){
		String[] sets =null;
		try{
		sets = textField.getText().split(",");
		if(textField_1.getText().length()<1) return null;
		int x = Integer.valueOf(nbrVarComboBox.getSelectedItem().toString());
		x = (int) Math.pow(2, x);
		for(String s : sets){
			int set = Integer.valueOf(s);
			if (!(set <x))return null;
		}
		}
		catch(Exception e){}
		return sets;

	}