Answer Posted / monika

string is immutable, that is it can not be extended.whereas
StringBuffer is mutable and can be extended.
Fro example :
Consider 2 statement : "Welcome " and "to Java World".
now assign first statement to string and string buffer.
String str = "Welcome" & StringBuffer strBuff = new
StringBuffer("Welcome");
Now if we add 2nd statement to both then :
str= str + "to Java World" -> In this case, it would dump
all the memory allocated with "welcome" and allocate a new
memory space to the entire string "Welcome to Java World" .
On the other hand, in strBuff :-
strBuff.append("to Java World") -> if simply allocate a
new memory space to only 2nd statement and add to link to
previous name.

What are the classes in the java collection framework? : java collections

992

---

What are the considerations to be made in case of loops in java ?

988

---

What are the types of java collections? : java collections

993

---

Hi Friends , am newbie to ajax. For example just consider one account registration - A form contains 8 text fields with submit button. In this form second texbox contains "username " . On right side of text box there is a label box . On clilck action i need to determine user is available or not. Is it possible on clicking label or should i click submit button.

2007

---

What are the interfaces in java collections? : java collections

1085

---

What is iterator in the java collections framework? : java collections

934

---

Hi we have an urgent requirement for Java/J2ee technical lead position & also looking for "Java Guidewire claimcentre" experienced professional for Bangalore location if interested can reach srisanh@gmail.com

2945

---

HOW MUCH PERCENTAGE WE DEDUCT FOR OUR SUPPLIERS OR OTHER PROFESSIONALS

2006

---

What is the difference between comparable and comparator in java.util pkg?

1071

---

How do I find jre path in windows?

976

---

Which sorting algorithm is used by collections.sort() in java ?

878

---

What are the uses of the set interfaces in the java collections? : java collections

928

---

who will give req's to u?. how they send req's to u? . what design documents contains?. when bugs raised on other developer code how to report to them?.(throgh mail or ........). how to retrive 100 recods from dao layer to presentation layer.using which collection?. what is sequence diagram.?.

2285

---

my interviewer asked me what technical specification you used how to answer that question

2325

---

What are the different types of ways where you can iterate over a list? : java collections

962

---