so how do you do it ?
The easiest way i came across use the method setLength()
public void setLength(int newLength)You may have the case like
StringBuffer sb = new StringBuffer("HelloWorld")
// after many iterations and manipulations
// reuse sb
Please note you cant say
StringBuffer sb = "";
You will get a type mismatch error saying that "Cannot assign a value of type String to StringBuffer"
Makes sense as StringBuffer is not String , and they both inherit from java.lang.Object