In HashTable I am storing null value..then what is the
error it will show
- 2 Answers
- 11607 Views
- GM General Motors, I also Faced
- E-Mail Answers
Answers were Sorted based on User's Feedback
Answer / mvteja
Hashtable does not contain null value. if v try to store
null value, v will get the following error.
F:\Test>javac -d . Test.java
F:\Test>java a.b.c.Test
Exception in thread "main" java.lang.NullPointerException
at java.util.Hashtable.put(Unknown Source)
at a.b.c.Test.<init>(Test.java:18)
at a.b.c.Test.main(Test.java:27)
F:\Test>
| Is This Answer Correct ? | 16 Yes | 0 No |
Answer / karthik
Normally hastable doen't allow null value, it will through
run time exception like NullPointerException
| Is This Answer Correct ? | 1 Yes | 0 No |
How is serialization used generally ?
What do you know about seam?
Connection Pooling with different type of databases?
What is checkpoint? How to create checkpoints in our java projects?
What modifiers may be used with an inner class that is a member of an outer class?
What are the ways to define classes that can be run as threads?
Name three component subclasses that support painting?
Write a java program to find out the sum of harmonic series : 1 + ½ + 1/3 + ……… up to nth term , for any value of n.
which book is better for jdbc ,servlets and jsp
Differences between applications and applets?
How can a dead thread be restarted?
What is a task?s priority?
Core Java 
