public long[] getOffsets() 
{
        return offsets;
}

 public  void initData(TrueTypeFont ttf,
    TTFDataStream data) throws IOException 
{
        HeaderTable head = ttf.getHeader();
        MaximumProfileTable maxp = ttf.getMaximumProfile();
        int numGlyphs = maxp.getNumGlyphs();
        offsets = new long[ numGlyphs +1];
        for( int i=0; i< numGlyphs+1; i++ )
        {
            if( head.getIndexToLocFormat() == SHORT_OFFSETS )
            {
                offsets[i] = data.readUnsignedShort() * 2;
            }
            else if(  head.getIndexToLocFormat() == LONG_OFFSETS )
            {
                offsets[i] = data.readUnsignedInt();
            }
            else
            {
                throw new IOException( "Error:TTF.loca unknown offset format.");
            }
        }
}

This will read the required data from the stream.

 public  void setOffsets(long[] offsetsValue) 
{
        this.offsets = offsetsValue;
}