for (int i = 0; i < str.length(); i++) { int digit = Integer.MIN_VALUE; char ch = str.charAt(i); if (ch >= '0' && ch <= '9') { digit = Character.digit(ch, radix);
for (int i = 0; i < str.length(); i++) { int digit = Integer.MIN_VALUE; char ch = str.charAt(i); if (ch >= '0' && ch <= '9') { digit = Character.digit(ch, radix);