int numchars = 0;
Reader r = new InputStreamReader(new FileInputStream(f2));
while(true) {
int numread = r.read(chars, numchars, chars.length - numchars);
int numchars = 0;
Reader r = new InputStreamReader(new FileInputStream(f2));
while(true) {
int numread = r.read(chars, numchars, chars.length - numchars);