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  1. import java.util.*;
  2.  
  3. class Main{
  4.   public static void main(String args[]) {
  5.     sample1();
  6.     sample2();
  7.   }
  8.   static void sample1() {
  9.     ArrayList<HashMap<String, String>> arrayMap = new ArrayList<HashMap<String, String>>();
  10.     HashMap<String, String>map = new HashMap<String, String>();
  11.  
  12.     map.put("key0", "value0");
  13.     arrayMap.add(0, map);
  14.     map.put("key1", "value1");
  15.     arrayMap.add(1, map);
  16.  
  17.     System.out.println("sample1:");
  18.     System.out.println(arrayMap.get(0).get("key0"));
  19.     System.out.println(arrayMap.get(1).get("key1"));
  20.     System.out.println(arrayMap.get(1).get("key0"));
  21.   }
  22.   static void sample2() {
  23.     ArrayList<HashMap<String, String>> arrayMap = new ArrayList<HashMap<String, String>>();
  24.     HashMap<String, String>map1 = new HashMap<String, String>();
  25.     HashMap<String, String>map2 = new HashMap<String, String>();
  26.  
  27.     map1.put("key", "value0");
  28.     arrayMap.add(0, map1);
  29.     map2.put("key", "value1");
  30.     arrayMap.add(1, map2);
  31.  
  32.     System.out.println("sample2:");
  33.     System.out.println(arrayMap.get(0).get("key"));
  34.     System.out.println(arrayMap.get(1).get("key"));
  35.   }
  36. }
  37. /* end */
  38.  
  39.  
Success #stdin #stdout 0.03s 245632KB
comments (?)
stdin 
Standard input is empty
stdout 
sample1:
value0
value1
value0
sample2:
value0
value1
https://ideone.com/q4XhcY
language:
Java (HotSpot 12)
created:
12 years ago
visibility:
public

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