Take a input and add it to Linkedlist

Question

How do i take a input from JOptionPane.showInputDialog, split it and add it to an Arraylist?

public static void main(String[] args) {
     String acc = JOptionPane.showInputDialog("Enter a string:");
     int num = Integer.parseInt(acc);
}

i mean take a input in sentence at split all the words and add it to linkedlist or arraylist. — koshish kharel, Mar 05 '15 at 14:42

score 1 · Answer 1 · edited May 23 '17 at 10:09

1

Please pay more attention to your posts. In the title you say LinkedList, in the text ArrayList. By the way will nobody figure out what you really want with that kind of information.

So you want to split something? You mean the string that you are getting there? Then just look at this post!

How to split a string in Java

Then with the single values you simply add then to the list.

Example:

String acc = JOptionPane.showInputDialog("Enter a string:"); //enters yes-no
String[] result = acc.split("-");
myArrayList.add(result[0]); //yes
myArrayList.add(result[1]); //no

edited May 23 '17 at 10:09

Community

1
1

answered Mar 05 '15 at 14:47

Juce

341
1
8

i need to parse it to integer first, – koshish kharel Mar 05 '15 at 14:53
and sorry about mismatch of title and content :) – koshish kharel Mar 05 '15 at 14:54
then just parse it? ^^ – Juce Mar 05 '15 at 14:55

score 1 · Accepted Answer · answered Mar 05 '15 at 14:54

You can use Java's String.split() to separate a string based on a separatos. For example if the words in the String are separated by a space then you can use:

yourString.split(" ");

This will return an String array. A more concrete example for what you want can be something like this

ArrayList<String> list = new ArrayList<String>();
String pop = "hello how are you doing";
for(String s: pop.split(" ")){
      list.add(s);
}

The variable 'list' will contain:

        ["hello", "how", "are", "you", "doing" ]

EDIT: I read in another post that you wanted to parse it to integer first, you should put that kind of things in your question. If you can then it's better if you split the string with the above method and then parse each element as you add it to an Integer ArrayList (this if the elemenets are integers).

score 0 · Answer 3 · answered Mar 05 '15 at 14:50

    Component frame = new JFrame();
    // get text
    String name = JOptionPane.showInputDialog(frame, "What's your name?");
    System.out.println(name);
    // split text when u get a space
    List<String> list = Arrays.asList(name.split("\\p{Z}+"));
    System.out.println(list);

Take a input and add it to Linkedlist

3 Answers3