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Added: May 5, 2021 4:56 PM
Views: 475
Tags: collections
  1.     public static void main(String[] args) {
  2.  
  3.         var hash_map = new HashMap<Integer, String>();
  4.  
  5.         //Werte zuweisen mit PUT anstatt mit ADD!!
  6.         hash_map.put(1, "Red");
  7.         hash_map.put(2, "Green");
  8.         hash_map.put(3, "Black");
  9.         hash_map.put(4, "White");
  10.         hash_map.put(5, "Blue");
  11.  
  12.         var hash_map2 = new HashMap<Integer, String>();
  13.         hash_map2.put(4, "White");
  14.         hash_map2.put(5, "Blue");
  15.         hash_map2.put(6, "Orange");
  16.  
  17.         //get value of key 3
  18.  
  19.         String val = (String)hash_map.get(3);
  20.         //check the value
  21.         System.out.println("Value for key 3 is: " + val);
  22.     }
  23. }
  24.