question: private void addToken ( int token ) { try { fTokens [ fTokenCount ] = token ; } catch ( ArrayIndexOutOfBoundsException ex ) { int [ ] oldList = fTokens ; fTokens = new int [ fTokenCount << 1 ] ; System . arraycopy ( oldList , 0 , fTokens , 0 , fTokenCount ) ; fTokens [ fTokenCount ] = token ; } fTokenCount ++ ; }
target:  Add the specified int token