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The NumberFormat object is created once when the program starts

import java.text.NumberFormat; public class MainClass {   static NumberFormat cf = NumberFormat.getCurrencyInstance();   public static void main(String[] args) {     printMyAllowance();     printCostOfPaintBallGun();   }   public static void printMyAllowance() {     double myAllowance = 5.00;     cf = NumberFormat.getCurrencyInstance();     System.out.println("My allowance: " + cf.format(myAllowance));   }   public static void printCostOfPaintBallGun() {     double costOfPaintBallGun = 69.95;     cf = NumberFormat.getCurrencyInstance();     System.out.println("Cost of Paint Ball Gun: " + cf.format(costOfPaintBallGun));   } }