Numbers and letters
is this code true if i want to check if num2
1- either 6 digits (0-9) or letters in UPPER CASE.
2- or a mixture of letters in upper case and digits (in this case there may be up
to 9 letters and digits)
if(num2.length()==6 &&(c1>='A'&& c1<='Z'||
c1>0 && c1<10 &&
c2>='A'&& c2<='Z'||
c2>0 && c2<10 &&
c3>='A'&& c3<='Z'||
c3>0 && c3<10 &&
c4>='A'&& c4<='Z'||
c4>0 && c4<10 &&
c5>='A'&& c5<='Z'||
c5>0 && c5<10 &&
c6>='A'&& c6<='Z'||
c6>0 && c6<10)||
num2.length()==7 &&(c1>='A'&& c1<='Z'||
c1>0 && c1<10 &&
c2>='A'&& c2<='Z'||
c2>0 && c2<10 &&
c3>='A'&& c3<='Z'||
c3>0 && c3<10 &&
c4>='A'&& c4<='Z'||
c4>0 && c4<10 &&
c5>='A'&& c5<='Z'||
c5>0 && c5<10 &&
c6>='A'&& c6<='Z'||
c6>0 && c6<10 &&
c7>='A'&& c7<='Z'||
c7>0 && c7<10)||
num2.length()==8 &&(c1>='A'&& c1<='Z'||
c1>0 && c1<10 &&
c2>='A'&& c2<='Z'||
c2>0 && c2<10 &&
c3>='A'&& c3<='Z'||
c3>0 && c3<10 &&
c4>='A'&& c4<='Z'||
c4>0 && c4<10 &&
c5>='A'&& c5<='Z'||
c5>0 && c5<10 &&
c6>='A'&& c6<='Z'||
c6>0 && c6<10 &&
c7>='A'&& c7<='Z'||
c7>0 && c7<10 &&
c8>='A'&& c8<='Z'||
c8>0 && c8<10)||
num2.length()==9 &&(c1>='A'&& c1<='Z'||
c1>0 && c1<10 &&
c2>='A'&& c2<='Z'||
c2>0 && c2<10 &&
c3>='A'&& c3<='Z'||
c3>0 && c3<10 &&
c4>='A'&& c4<='Z'||
c4>0 && c4<10 &&
c5>='A'&& c5<='Z'||
c5>0 && c5<10 &&
c6>='A'&& c6<='Z'||
c6>0 && c6<10 &&
c7>='A'&& c7<='Z'||
c7>0 && c7<10 &&
c8>='A'&& c8<='Z'||
c8>0 && c8<10 &&
c9>='A'&& c9<='Z'||
c9>0 && c9<10)){
My God that is ugly.
Try something like this
if(theInput.length()==6||theInput.length==9){
Pattern p = Pattern.compile("[0-9A-Z]+");
Matcher m = p.matcher(theInput);
if(m.matches()){
//the input is a string either 6 or 9 in length containing only capital letter or numbers
look at the java.util.regex package
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