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Java - Code Samples

 Sample 1. Initialize maps through static block

public class CoinChanger {
   private static Map<Currency, Integer> cashBox;
   private static Map<Currency, Integer> change;

enum Currency {

   static {
      cashBox = new TreeMap<Currency, Integer>();
      change = new TreeMap<Currency, Integer>();

   private static void initializeCashBox(){
      //set the cash box
      cashBox.put(Currency.DOLLAR, 50);
      cashBox.put(Currency.QUARTER, 0);
      cashBox.put(Currency.DIME, 50);
      cashBox.put(Currency.NICKEL, 50);
      cashBox.put(Currency.PENNY, 50);

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