File APIs for Java Developers
Manipulate DOC, XLS, PPT, PDF and many others from your application.
The moose likes Java in General and the fly likes StringBuffer and setLength() Big Moose Saloon
  Search | Java FAQ | Recent Topics | Flagged Topics | Hot Topics | Zero Replies
Register / Login
JavaRanch » Java Forums » Java » Java in General
Bookmark "StringBuffer and setLength()" Watch "StringBuffer and setLength()" New topic

StringBuffer and setLength()

Stefan Geelen
Ranch Hand

Joined: Nov 19, 2001
Posts: 49
Hi folks,
I have a strange (?) problem in underlying code and can't see why:
void setTextTmp(StringBuffer sb)
System.out.println("setTextTmp (sb): "+sb.toString());
System.out.println("setTextTmp: "+sbtexttmp.toString());
//this.sbtexttmp = sb ; //new StringBuffer(s);
I want to reuse the sbtexttmp StringBuffer, so I put the length to zero and then append the sb StringBuffer.
The problem is that this doesn't seem to work!
After the append the sbtexttmp stringBuffer stays empty .
If I use 'this.sbtexttmp = sb ' then it does work.
Does anyone have any idea ?
Peter den Haan
Ranch Hand

Joined: Apr 20, 2000
Posts: 3252
Are you sure that sb and sbtexttmp are different objects?
- Peter
Stefan Geelen
Ranch Hand

Joined: Nov 19, 2001
Posts: 49
thx, you were right.
I agree. Here's the link:
subject: StringBuffer and setLength()
It's not a secret anymore!