Java : Adding to the end of the String

Question

I have a String as shown below

String result = ["A","B","C","D","E","F"]
List list = new ArrayList();

        list.add("One");
        list.add("One2");
        list.add("One3");

I have an ArrayList , and i want to add the String result , so that it should look like

["A","B","C","D","E","F","One","One2","One3"]

I have tried this way

String result = ["A","B","C","D","E","F"]
        for(int i=0;i<list.size();i++)
        {
        result = result+"list.get(i)"
        }

could anybody please help .

`["A","B","C","D","E","F"]` is not a String. Can you clarify your intent? — assylias, Jan 31 '13 at 14:08
See i get a response from a server that way , so for standalone purpose i did so — Pawan, Jan 31 '13 at 14:08
If it is a JSON response then you need to parse it using an appropriate object mapper (you may use the Jackson library for that purpose as I usually do). — Lion, Jan 31 '13 at 14:10
@PreethiJain: If you're going to write something which looks like code, please make it *real code*. Otherwise it's very hard to know what you're really trying to achieve. — Jon Skeet, Jan 31 '13 at 14:11
It's either `String result = "ABCDEF"` (a string) or `String[] result = {"A","B","C","D","E","F"}` (an array of strings), pick one — Bernhard Barker, Jan 31 '13 at 14:14
Please have a look on my post to see another approach to solv your issue — Festus Tamakloe, Jan 31 '13 at 14:32

score 2 · Answer 1 · answered Jan 31 '13 at 14:20

This is a pretty way to do that without too many walk around

import java.util.ArrayList;
import java.util.List;

public class Tester4 {

    public static void main(String args[]) {

        String[] result = new String[] { "A", "B", "C", "D", "E", "F" };

        List<String> list = new ArrayList<String>();

        list.add("One");
        list.add("One2");
        list.add("One3");

        for(int i = result.length-1; i>= 0; i--) {

            list.add(0,result[i]);
        }

        for(String string : list) {
            System.out.println("Answer: " + string);
        }

    }

}

alex · Accepted Answer · 2013-01-31T22:37:04.163

as @assylias pointed out, your question seems to be unclear. Assuming that your variable "result" is a string, do the following:

String result = "\"A\",\"B\",\"C\",\"D\",\"E\",\"F\"";
List list = new ArrayList();

list.add("One");
list.add("One2");
list.add("One3");

for(int i=0;i<list.size();i++)
{
   result += ",\"" + list.get(i) +"\""
}

Then your output from "result" should be:

"A","B","C","D","E","F","One","One2","One3"

MG_Bautista · Answer 3 · 2013-01-31T14:19:15.413

0

["A","B","C","D","E","F"] is not a String. try this...

String result = ""
for(int i = 0; i < list.size(); i++){
    result += list.get(i);
}

Greetings.

edited Jan 31 '13 at 14:19

answered Jan 31 '13 at 14:13

MG_Bautista

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Ikki · Answer 4 · 2013-01-31T14:23:14.410

0

The variable "result" that you use is an Array of String, not a String.

If you want to have a list of string with those charatestics you should write:

String[] result = {"A","B","C","D","E","F"};
ArrayList<String> list = new ArrayList<String>();
list.add("One");
list.add("One2");
list.add("One3");
for(int i=0;i<result.length;i++)
{
   list.add(i, result[i]);
}

So you will put the elements of the array "result" in the list before the others.

edited Jan 31 '13 at 14:23

answered Jan 31 '13 at 14:15

Ikki

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3
12

This is inefficient, you'll be moving those 3 "One" elements continuously. Rather start with something like `list = new ArrayList(Arrays.asList(result))` and append the `One`, `One2` and `One3`. Not to mention it's not compilable code. – Bernhard Barker Jan 31 '13 at 14:18

score 0 · Answer 5 · edited May 23 '17 at 12:04

0

Result isn´t a String, it´s a String[]. So, if you want result to look like

["A","B","C","D","E","F","One","One2","One3"]

you need to put "One", "Two", "Three" in another String[] and then concatenate the two arrays, for example like it´s shown here :

edited May 23 '17 at 12:04

Community

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answered Jan 31 '13 at 14:16

Jannis Alexakis

1,279
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score 0 · Answer 6 · answered Jan 31 '13 at 14:16

0

list.addAll(Arrays.asList(result)).toArray(new String[0]);

answered Jan 31 '13 at 14:16

bwt

17,292
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isvforall · Answer 7 · 2013-01-31T14:27:33.577

0

In Java defining the array looks like: String[] result = {"A","B","C"}

String[] result = {"A","B","C","D","E","F"};
List list = new ArrayList();

list.add("One");
list.add("One2");
list.add("One3");

List<String> newList = new ArrayList(Arrays.asList(result));
newList.addAll(list);

Output newList:

[A, B, C, D, E, F, One, One2, One3]

edited Jan 31 '13 at 14:27

answered Jan 31 '13 at 14:22

isvforall

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Java : Adding to the end of the String

7 Answers7