Answer / brijendra kumar (xavient)

Actually in HashSet we are able to add the duplicate value,
but at the execution time JVM ignore the duplicate value.
HashSet<String> T= new HashSet<String>();
T.add("k");
T.add("k");
System.out.println("size" +T.size());
when we execute these line of code then we got the size of
HashSet is 1.
Due to this reason we are unable to iterate the duplicate
value from HashSet.

Answer / shashi

Because HashSet class will override equals and hashcode method internally.

What is need of DAO? Write one simple DAO example?

2 Answers   IBM,

---

what is acl(access control list)?

1 Answers   Athena, HCL,

---

What is the use of hashcode in java ?

0 Answers  

---

Is it possible to create Userdefined Unchecked Exception also?If Yes, give an example?

1 Answers   HCL,

---

what are callback methods?

3 Answers   iFlex,

---

whatis arguments &what is default argument

2 Answers   CTS,

---

Runining mutiple tomcat server in a single machine is possible Yuo wil have to duplicate configuration with different port numbers

2 Answers   HCL,

---

what is the IDE that you have used to write your java programs?

2 Answers   Inforica, Interface Software,

---

VSS Objectives

1 Answers  

---

where is JNDI being used in java platform?

2 Answers  

---

what is jndi?

2 Answers  

---

What is the use of the list interface in the java collection? : java collections

0 Answers  

---