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  1. import java.util.ArrayList;
  2. import java.util.HashMap;
  3. import java.util.List;
  4. import java.util.Map;
  5. import java.util.Map.Entry;
  6.  
  7.  
  8. public class Main {
  9.  
  10. 	public static void main(String[] args) {
  11.  
  12. 		Map<String, Integer> map = new HashMap<>();
  13.  
  14. 		map.put("hello", 1);
  15. 		map.put("world", 2);
  16.  
  17. 		List<Entry<String, Integer>> list = new ArrayList<>(map.entrySet());
  18.  
  19. 		System.out.println("list size: " + list.size());
  20.  
  21. 		System.out.println("list[0].key: " + list.get(0).getKey());
  22. 		System.out.println("list[0].value: " + list.get(0).getValue());
  23.  
  24. 	}
  25.  
  26. }
  27.  
Success #stdin #stdout 0.07s 380224KB
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stdin
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Standard input is empty
stdout
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list size: 2
list[0].key: hello
list[0].value: 1
https://ideone.com/P7DTFy
language:
Java (HotSpot 12)
created:
11 years ago
visibility:
public

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