Interested to Buy Any Domain ? << Click Here >> for more details...
how copy the hashmap object into arraylist at java program?
- 4 Answers
- 14641 Views
- HCL, Wipro, I also Faced
- E-Mail Answers
Answers were Sorted based on User's Feedback
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 |
What are the performance implications of interfaces over abstract classes?
what is the difference between HashMap and Hashtable
17 Answers Value Labs, Virtusa,
What is the full form of jpeg?
How do you do math powers in java?
What is the purpose of finalization?
What is bitwise complement?
Can we have try block without catch block?
What is are packages?
When is the arraystoreexception thrown?
What is enhanced loop in java?
What is the difference between sop and work instruction?
Is finalize() similar to a destructor?
Core Java 
