public class Format { double allPrice; public String formatRuble(double allPrice) { this.allPrice = (int)allPrice; if((this.allPrice % 100 >= 11) && (this.allPrice % 100 <= 14)) { return " рублей"; } else { switch ((int)this.allPrice % 10) { case 1: return " рубль"; case 2: case 3: case 4: return " рубля"; default: return " рублей"; } } } String roundingAll(double price) { return String.format("%.2f", price); } }