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Java Java Objects Delivering the MVP Applying a Discount Code

Gabe Olesen
Gabe Olesen
1,606 Points

Was my code OK?

Hi All,

I just finished this challenge and I wanted to ask the community if my code was OK for this task and if I should of done it a different/better way?

private String normalizeDiscountCode(String code) {
    this.discountCode = code.toUpperCase(); 
    for (char letter : discountCode.toCharArray()) {
      if (Character.isDigit(letter) || letter == '@') {
        throw new IllegalArgumentException("Invalid discount code.");
    return discountCode;
Ian Taylor
Ian Taylor
Courses Plus Student 1,420 Points

Hi Gabe your code worked for me. Thank you! Not sure if there is a better way. I tried this but it kept throwing the error for the $ sign. char[] chars = discountCode.toCharArray(); for (char c : chars){ if ( !(Character.isDigit('$')) && !(Character.isLetter(c))){
throw new IllegalArgumentException("Invalid discount code"); }