How do I check if the list contains the value listed in array list?

December 23, 2021

I have an array of strings that contains URL
String[] stringUrl = ["abc.com", "xyz.com", "est.com"]

The requirement is to find the match. I iterate over the array as soon as I find the match I break from the loop
I have the below code:

public void determineMatchedString(String envUrl){

for (int i = 0; i < stringUrl.size(); i++) 
        {
            if(stringUrl(i).equalsIgnoreCase(envUrl)) {
                logger.info("matched"));
                break;
            }else {
                logger.info("we are picking the default value");
            }
        }
}

In the envUrl when I pass "xyz.com" as a parameter it prints the else part logger.info("we are picking the default value");

However, the value "xyz.com" is present in an array.

Expected Output: logger.info("matched"));
Actual Output: logger.info("we are picking the default value");

>Solution :

You print out a logging row in every iteration of the list. Instead, you should print out ""we are picking the default value" only after the loop, if the match is not found:

boolean found = false;
for (int i = 0; i < stringUrl.size(); i++) {
    if (stringUrl[i].equalsIgnoreCase(envUrl)) {
        logger.info("matched"));
        found = true;
        break;
    }
}
if (!found) {    
    logger.info("we are picking the default value");
}

Side note:
Using streams would make this code a bit neater:

if (Arrays.stream(stringUrl).anyMatch(s -> s.equalsIgnoreCase(envUrl))) {
    logger.info("matched"));
} else {
    logger.info("we are picking the default value");
}