CODEWITHSUNDEEP
javaarraysdoublejoptionpane
lukeb28
lukeb28

Reputation: 189

User input and arrays

So I can't get this little snipit of code to work and I'm not sure why it wont...

String rawInput = JOptionPane.showInputDialog("Please enter the three side lengths seperated by spaces.");

double[] hold = double.parseDouble(rawInput.split(" "));

I have an idea to use another string array to put the values in initially then put them into the double array using a for loop and the double.parseDouble() but that seems overly complicated for what I want to do.

Upvotes: 0

Views: 31

Answers (4)

Drogba
Drogba

Reputation: 4346

String rawInput = JOptionPane.showInputDialog("Please enter the three side lengths seperated by spaces.");
String[] inputs = rawInput.split(" ");
double[] values = new double[inputs.length];
for (int i = 0; i < inputs.length; i++) {
    values[i] = Double.parseDouble(inputs[i]);
}

Try this!

Upvotes: 0

lukeb28
lukeb28

Reputation: 189

What I ended up doing was this:

    String rawInput = JOptionPane.showInputDialog("Please enter the three side lengths seperated by spaces.");

    double[] doubleHold = new double[3];
    String[] stringHold = rawInput.split(" ");

    for(int i = 0; i < 3; i++)
    {
        doubleHold[i] = Double.parseDouble(stringHold[i]);
    }

I don't like how it works and think there must be a better way, anyone have that better way?

Upvotes: 0

nerd4life
nerd4life

Reputation: 63

If only it was that simple. You will have to create a loop.

Upvotes: 0

Dawood ibn Kareem
Dawood ibn Kareem

Reputation: 79807

Your code fails to compile because rawInput.split(" ") returns an array of String objects. You need just one String object to pass to Double.parseDouble(). It looks like you'll need a loop, to iterate through the array that you get.

Upvotes: 2

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