Interested to Buy Any Domain ? << Click Here >> for more details...
how do you store phone numbers using java collections
- 5 Answers
- 18730 Views
- Bosch, IBAB, I also Faced
- E-Mail Answers
Answers were Sorted based on User's Feedback
Answer / ankur dhoot
Shahnawaz Sheikh---sorry to say but don't you think that ur
ans is having some flaw...u r correct that phone no can be
store in HasMap but u have taken name as key but name can be
repeated while ph no is unique so don't u think that phone
no should be key in upper hash map.
| Is This Answer Correct ? | 9 Yes | 2 No |
Answer / shahnawaz sheikh
Using HashMap.. can be one of the way.
HashMap hs = new HashMap();
hs.put("amit","989213232");
hs.put("john","989211422");
hs.put("Alex","989214578");
| Is This Answer Correct ? | 6 Yes | 4 No |
Answer / saikatk
Sorry,sunny i am not agree with your scenario that one
number is common for husband & wife or between friends
etc.It is not real life scenario, phone no. are always
register with single person name ,that might be possible two
or many persons have
name,if we use HashMap , the Key might be different than
name like empid or securityid or some unique parameter.
Thanks
| Is This Answer Correct ? | 5 Yes | 3 No |
Answer / rajeev
Hash map is only the answer to solve this type of problem....
HashMap hs=new HashMap();
hs.lateral={"Ankit Arora","9897655434"};
like this we can store the number using hash map table.
| Is This Answer Correct ? | 0 Yes | 4 No |
Answer / sunny
We will have to assume that the names are going to be
unique. We may have a situation, that one number is common
for husband & wife or between friends etc. I mean, there is
a possibility, right? And normally you get the name of the
person and you have to find the phone number (I dont think
its going to be the other way round...in normal cases).
Then we need to have the name as the "Key", rather than
as "Value". Let me know, your thoughts on the same. Thanks.
| Is This Answer Correct ? | 0 Yes | 5 No |
When finally clause is executed?
what is collatration?
What is array length in java?
What's the difference between comparison done by equals method and == operator?
What is the purpose of the enableevents() method?
write a program to create an arraylist with string(add,remove) operation.and value should be enter through keyboard.
What kind of variables a class can consist of?
can any one tell me when do u go for inheritance and polymorphism
For technical interview question please sir send me because tomorrow my interview
what is polymorphism?
Can we write a class without main method in java?
I want to print “hello” even before main is executed. How will you acheive that?
Core Java 
