CODEWITHSUNDEEP
javaarraysfile
spogebob92
spogebob92

Reputation: 1484

Checking for data in array indexes

I am trying to create a program that will read in a file, split that file into an array wherever there is an "/" and then have the variable "theOutput" set as the value of the index in the array. Trouble is, the index is always equal to null. Here is my code:

String theOutput = null;
        String content = new Scanner(new File("URL.txt")).useDelimiter("\\Z").next();
        theInput = content;
        String[] URL = theInput.split("/");
        System.out.println(theInput);
        System.out.println(URL.length);




            if (URL.length == 1) {
                theOutput = URL[0];
                if (URL.length == 3) {
                    theOutput = URL[2];
                    if (URL.length == 4) {
                        theOutput = URL[3];
                        if (URL.length == 5) {
                            theOutput = URL[4];
                            if (URL.length == 6) {
                                theOutput = URL[5];
                            }
                        }
                    }

An example of the data found in the file would be "coffee://localhost/brew" so it doesn't always use 5 indexes in the array.

Upvotes: 0

Views: 53

Answers (1)

jedyobidan
jedyobidan

Reputation: 926

your if statements are nested in each other, so if(URL.length == 3) will only run if the length of the URL is 1. So, you should do something like this:

if(URL.length == 1){
    theOutput = URL[0];
}
if(URL.length == 2){
    theOutput = URL[1]
}
//etc.

or, you can say theOutput = URL[URL.length-1] to get the last element of the array.

Upvotes: 1

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