I am working on a project for a beginners java course, I need to read a file and turn each line into an object, which i will eventually print out as a job listing. (please no ArrayList suggestions) so far i have gotten that file saved into a String[], which contains strings like this:

*"iOS/Android Mobile App Developer - Java, Swift","Freshop, Inc.","$88,000 - $103,000 a year"

"Security Engineer - Offensive Security","Indeed","$104,000 - $130,000 a year"

"Front End Developer - CSS/HTML/Vue","HiddenLevers","$80,000 - $130,000 a year"*

what im having trouble with is trying to split each string into its three parts so it can be inputted into my JobService createJob method which is as shown:

 public Job createJob(String[] Arrs) {
       Job job = new Job();
        job.setTitle(Arrs[0]);
        job.setCompany(Arrs[1]);
        job.setCompensation(Arrs[2]);
        return job;
    }

I am terrible at regex but know that trying to .split(",") will break up the salary portion as well. if anyone could help figure out a reliable way to split these strings to fit into my method i would be grateful!!! Also im super new, please use language the commoners like me will understand...

CodePudding user response：

You need a slightly better split criteria, something like \"," for example...

String text = "\"iOS/Android Mobile App Developer - Java, Swift\",\"Freshop, Inc.\",\"$88,000 - $103,000 a year\"";
String[] parts = text.split("\",");
for (String part : parts) {
    System.out.println(part);
}

Which prints...

"iOS/Android Mobile App Developer - Java, Swift
"Freshop, Inc.
"$88,000 - $103,000 a year"

Now, if you want to remove the quotes, you can do something like....

String text = "\"iOS/Android Mobile App Developer - Java, Swift\",\"Freshop, Inc.\",\"$88,000 - $103,000 a year\"";
String[] parts = text.split("\",");
for (String part : parts) {
    System.out.println(part.replace("\"", ""));
}

Regular Expression

No, I'm not that good at it either. I tried...

String[] parts = text.split("^\"|\",\"|\"$");

And while this works, it produces 4 elements, not 3 (first match is blank).

You could remove the first and trailing quotes and then just use "," instead...

text = text.substring(1, text.length() - 2);
String[] parts = text.split("\",\"");

CodePudding user response：

1. trim leading and trailing quotes
2. split on ","

As code:

String[] columns = line.replaceAll("^\"|\"$", "").split("\",\"");

^"|"$ means "a quote at start or a quote at end"

The regex for the split is just a literal ","