what aegis distance emanate .zip repository controlling java?

i formula emanate .zip list files:

zipoutputstream zos = new zipoutputstream(new fileoutputstream(zipfile));

for (int i=0;i<srcfiles.length;i++){
    twine filename=srcfiles[i].getname();
    zipentry zipentry = new zipentry(filename);
    zos.putnextentry(zipentry);
    inputstream fis = new fileinputstream(srcfiles[i]);
    int read;
    for(byte[] buffer=new byte[1024];(read=fis.read(buffer))>0;){
        zos.write(buffer,0,read);
    }
    fis.close();
    zos.closeentry();
}
zos.close();

i don't know zip algorithm zipoutputstream works, writes something before i review send 'zos' data, outcome record opposite distance bytes i select another aegis size.

in difference i don't know algorithm like:

read data-->process data-->create .zip

or

read brick data-->process brick data-->write brick .zip-->|
^-----------------------------------------------------------------------------------------------------------------------------

if case, aegis distance best?

update:

i have tested code, changing aegis distance 1024 64, zipping same files: 1024 bytes 80 kb outcome record 3 bytes smaller 64 bytes buffer. best aegis distance furnish smallest .zip fatest time?