import java.text.NumberFormat; public class F013_FormattingNumbers { public static void main(String[] args) { // 0.1 или 10% NumberFormat currency = NumberFormat.getCurrencyInstance(); String result = currency.format(1234567.891); System.out.println(result); NumberFormat percent = NumberFormat.getPercentInstance(); String result2 = percent.format(0.1); System.out.println(result2); // или String result3 = NumberFormat.getPercentInstance().format(0.1); System.out.println(result3); } }