Is java.util.Scanner that slow?
- by Cristian Vrabie
Hi guys,
In a Android application I want to use Scanner class to read a list of floats from a text file (it's a list of vertex coordinates for OpenGL). Exact code is:
Scanner in = new Scanner(new BufferedInputStream(getAssets().open("vertexes.off")));
final float[] vertexes = new float[nrVertexes];
for(int i=0;i<nrVertexFloats;i++){
vertexes[i] = in.nextFloat();
}
It seems however that this is incredibly slow (it took 30 minutes to read 10,000 floats!) - as tested on the 2.1 emulator. What's going on?
I don't remember Scanner to be that slow when I used it on the PC (truth be told I never read more than 100 values before). Or is it something else, like reading from an asset input stream?
Thanks for the help!
