Question

I need to verify my string contains 1 or more numbers and 1 or more alpha characters. This string can also have other characters like @#$%%#. etc. Any ideas?

Answer 1

Don’t use a regular expression for something like this – write a validator:

public boolean validate(String val) {
    int len=val.length();

    if(len>=8) {
        boolean alp=false,dgt=false;
        for(int xa=0; xa<len; xa++) {
            char chr=val.charAt(xa);
            alp|=Character.isLetter(chr);
            dgt|=Character.isDigit (chr);
            if(alp && dgt) { return true; }
            }
        }
    return false;
    }