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how copy the hashmap object into arraylist at java program?
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Answer / venkat
hashMap.keySet().toArray(); // returns an array of keys
hashMap.values().toArray(); // returns an array of values
| Is This Answer Correct ? | 15 Yes | 1 No |
Answer / abhinaw
HashMap hm = new HashMap();
hm.put("1", "a1");
hm.put("2", "a2");
hm.put("3", "a3");
hm.put("4", "a4");
hm.put("5", "a5");
ArrayList list = new ArrayList();
list.addAll(hm.entrySet());
System.out.println(list);
| Is This Answer Correct ? | 4 Yes | 3 No |
Answer / fellow java novice
/* HashMap hm; assume hash map has array list objects in it
ArrayList al = (ArrayList) hm.get("name by which arraylist
sits in the hashmap");
/* the crux of the matter is the user of 'get' to access
from hashmap
| Is This Answer Correct ? | 0 Yes | 6 No |
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Core Java 
