how do you store phone numbers using java collections
- 5 Answers
- 17201 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 |
What is run time allocation?
Can a function return a function?
Which is bigger float or double?
Is a boolean variable?
What is meant by JVM ?
What do you understand by java virtual machine?
How will you create the class for the following scenario? Employees under one employee?
How can we find size of the object ?
In a class implementing an interface, can we change the value of any variable defined in the interface?
What is a nested structure?
Which class represents the socket that both the client and server use to communicate with each other?
Explain method local inner classes ?
Core Java 
