what is diff string and stringbuffer

Answer Posted / aashish r. wadhokar

string is immutable,that we can not be modify its value.
when we assign any new value to String variable.a new object
is created on heap memory and that string variable refers to
that object.

whereas
StringBuffer is mutable so we can be modify its value.
as it refers to the same object and changes the state of
that object

Is This Answer Correct ?    5 Yes 3 No



Post New Answer       View All Answers


Please Help Members By Posting Answers For Below Questions

HOW MUCH PERCENTAGE WE DEDUCT FOR OUR SUPPLIERS OR OTHER PROFESSIONALS

1580


What are the different types of features of the java collections framework? : java collections

572


What is the enumerator of the java collection framework? : java collections

563


What are the differences between the java collection and the java list? : java collections

610


What are the types of interface used in the java collections? : java collections

588






What are the different types of classes implemented in the set interfaces? : java collections

604


What is Generic in java? Where can we write Generic ( class or method or objects or etc...)? with simple example? Thanks, Bose. Infosys 2 In which way does a Primitive data type is passed ? Sun- Microsystems 4 what is the use of declaring constructor as private? Sai- Softech 5 what is difference between global methods and local methods? 1 What is meant by class loader and how many types are there? Apple 1 what is meaning of JIT? 4 What is an abstract class? Wipro 5 what is filters and its use? Virtusa 2 why is multiple inheritance not allowed in java? Elementus-Technologies 7 Differences between jdk 1.4 and 1.5 Wipro 4 is JVM platform dependent or independent..? IBM 6 what is main purpose of abstract class? 5 what is difference between colection and collections? Tech-Mahindra 11 What error occurs if a try-catch-finally statement sequence does not have a catch clause? 2 Explain the difference between scrollbar and scrollpane? 1 Explain the differences between public, private, protected and static? 4 Explain the difference between getAppletInfo and getParameterInfo? 1 Is Cegonsoft Pvt.Ltd. a good Institute? 4 Why only one Class is public in one file? Explain in details. Thanks in Advance. 11 Which method will get invoked first in a stand alone application?

2323


Hi Friends, i have searched in google but not clear. can you give bank example with synchronized keyword

1614


Which interface does java.util.hashtable implement?

671


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

550


What is an algorithm in java collection framework? : java collections

577


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

566


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

591


What is java collection? : java collections

579


In hyderabad, which s/w training center is best for java, other than corejava what r the new tools to learn in java,which tool is best & have current requirement,pls give me information about java to learn ?

1679