Trabalhando com a Classe Date
String to Date: String dateObjectString; Date dateObjectDate; DateFormat dateFormat = new SimpleDateFormat("dd/MM/yyyy"); dateDate = dateFormat.parse(dateObjectString); Pegar a Data atual do Sistema: Date dataAtual = new Date(); Pegar a Data daqui há 10 dias : Date dataAtual = new Date(); System.out.println(dataAtual); Calendar cal = Calendar.getInstance(); cal.setTime(dataAtual); cal.add(Calendar.DATE, 10); Date dataNova; dataNova = cal.getTime(); ...