which of tha following is not a thread safe class?
a) ArrayList b)Vector c)HashTable d)None
Answers were Sorted based on User's Feedback
Answer / gunjan
ArrayList is,unsynchronized, not thread safe, vectors r
thread safe and synchronized
if u want to make Arraylist as thread safe, should use
Collections class synchronizedList(List) method
| Is This Answer Correct ? | 11 Yes | 0 No |
Answer / samir vasani
a)ArrayList
Because ArrayList is not a synchronized ,means it is not a
thread safe
| Is This Answer Correct ? | 6 Yes | 0 No |
Hey Guys n girls...
If you know the Answer Exactly den only post it, V dont want
Guess Answers as wel as Funny Ans, this is the site for not
fun, got it.
| Is This Answer Correct ? | 5 Yes | 2 No |
Answer / anonymous
hay submitted guy dun be angry!All person have their own view and assumption.
My answer is ArrayList.
| Is This Answer Correct ? | 1 Yes | 0 No |
Answer / aravinda reddy
ArrayList is by default not thread safe, but we can make it
thread safe. Below is the example how we can make it thread
safe.
public class SynchronizeList {
public static void main(String[] args) {
ArrayList<String> al=new ArrayList<String>
();
al.add("1");
al.add("2");
al.add("3");
//we can make the synchronized
Collections.synchronizedList(al);
synchronized(al) {
Iterator i = al.iterator(); // Must
be in synchronized block
while (i.hasNext())
System.out.println(i.next());
}
}
}
Vector and HashTable are by default synchronized. These are
thread safe.
Hence the answer is ArrayList.
| Is This Answer Correct ? | 1 Yes | 0 No |
What is the difference between Trusted and Untrusted Applet ?
What is difference between null and void?
How do you sort an array in java?
what is meant by package in java?
What is the difference between interpreter and compiling ?
Why does abstract class have constructor?
What is the preferred size of a component?
Explain the concept of hashtables?
how tha garbage collector know that the object will be deleted? on which algorithm the garbage collector works? what is the working principle of garbage collector? How manay types of garbage collectors r there?
Which package is used for pattern matching with regular expressions?
Can you have two constructors in java?
What is methodological theory?