Java – Blank page of code

How to clear a StringBuilder

There are three possible ways, but apparently the best one is to call setLength(0) on the StringBuilder object.

StringBuilder strBuilder = new StringBuilder();

// code that appends to strBuilder

strBuilder.setLength(0);

References

JavaCodeExamples – Java StringBuilder clear example, how to empty StringBuilder (StringBuffer)

How to start VisualVM with custom JDK

visualvm.exe --jdkhome "C:\Software\Java\jdk1.6.0" --userdir "C:\Temp\visualvm_userdir"

References