Clearing a string buffer/builder after loop

Question

How do you clear the string buffer in Java after a loop so the next iteration uses a clear string buffer?

Answer 1

The easiest way to reuse the StringBuffer is to 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
sb.setLength(0);
// reuse sb