Thanks, but once the StringBuffer is having some data and I printed using
System.out, for the next time I have to recreate the StringBuffer by eliminating
the previous content, what method I should use.
StringBuffer temp = new StringBuffer();
temp.append("test1");
temp.append("test2");
System.out.println(temp);
temp = new StringBuffer();
temp.append("test111");
temp.append("test222");
System.out.println(temp);
This is the correct way, if I make StringBuffer null, its giving
NullPointerException.
Is there any way, to directly overwrite the StringBuffer content with new content.
Thanks in advance.
Sushil
"Sachin S. Khanna" wrote:
> Well the basic purpose of not using the String objects is because they are
> immutable, eat up a lot of memory and the whole exercise turns out to be
> inefficient. Therefore it is beter to use the StringBuffer Object.
>
> It would make no difference if you would create a number of StringBuffer
> Objects to display your output as you would still be creating a lot of
> objects which would inturn use a lot of memory and this was exactly the
> reason why you were advised not to use the String Objects.
> Best thing to do would be to create a single StringBuffer Object use the
> append method for adding data ( as you are already doing ) and then call
> the toString() method on the StringBuffer Object to display the contents.
> Have a nice day.
> With regards,
> Sachin S. Khanna.
> www.emailanorder.com
>
> ----- Original Message -----
> From: Sushil Singh <[EMAIL PROTECTED]>
> To: <[EMAIL PROTECTED]>
> Sent: Wednesday, November 22, 2000 5:21 AM
> Subject: StringBuffer
>
> > Hi,
> >
> > I have a question regarding String and StringBuffer class. Recently I
> > read that we should not use "+" concatenation since it will create
> > temporary objects, instead we should use StringBuffer. My JSP is
> > producing series of System.out.println, like:
> > .......
> > some process
> > ....
> > System.out.println(new
> > StringBuffer("test").append("test1").append("test2"));
> > ----
> > System.out.println(new
> > StringBuffer("test3").append("test4").append("test5"));
> > ----
> > and so on.
> >
> > Now my question is that whether I should have one StringBuffer variable,
> > append it and then displays or everytime "new StringBuffer". Which way
> > is the best, any feedback will be highly appreciated.
> >
> > Thanks in advance.
> >
> > Sushil
> >
> >
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