how to get particular part of string?

Question

item1:100

item2:50

item3:200

I want to store separate item and price and store them in two different arrays: like in one array ,

item1

item2

item3

and in another array

You question is very similar to http://stackoverflow.com/questions/7925726/split-string-in-java-for-delimiter , but you are using : as a delimiter. Also, another quesyion about string split on android: http://stackoverflow.com/questions/3732790/android-split-string — Coral Doe, Aug 14 '12 at 07:33
@Coral, I wouldn't call that first one a dupe since it's not really about how to split a string, it's more why `^` doesn't work when splitting. The second one is a much closer match. In fact, too close. I'll have to close-vote on this one as a dupe. — paxdiablo, Aug 14 '12 at 07:44
where is your input string stored ? Is this also a `String` object or is it coming from a file ? — sunil, Aug 14 '12 at 07:46
@sunil string coming from text file stored on remote machine!! — amg, Aug 17 '12 at 02:37

Mahendra Liya · Accepted Answer · 2012-08-14T07:38:02.693

2

You can try the following code:

String DELIMITER = ":";

ArrayList<String> arrItems = new ArrayList<String>();
ArrayList<Integer> arrPrices = new ArrayList<Integer>();

Then you can just split the string and store the relevant values in the arraylist as:

String[] strTemp = "item1:100".split(DELIMITER);
arrItems.put(strTemp[0]);
arrPirces.put(strTemp[1]);

edited Aug 14 '12 at 07:38

answered Aug 14 '12 at 07:31

Mahendra Liya

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hey thanx buddy woking well!! – amg Aug 14 '12 at 09:52

paxdiablo · Answer 2 · 2012-08-14T07:36:33.707

You can use split to separate a string based on another string (actually a regular expression):

String str = "item1:100";
String[] words = str.split (":");

From there, it's a simple matter of adding words[0] to one array and words[1] to the other.

The following complete program shows how it's done:

import java.util.ArrayList;
class Test {
    private static ArrayList<String> items = new ArrayList<String>();
    private static ArrayList<Integer> values = new ArrayList<Integer>();
    private static void addToArray (String str) {
        String[] words = str.split(":");
        items.add(words[0]);
        values.add(new Integer (words[1]));
    }
    public static void main(String[] args) {
        addToArray ("item1:100");
        addToArray ("item2:50");
        addToArray ("item3:200");

        for (int i = 0; i < items.size(); i++)
            System.out.println ("Item = " + items.get(i) +
                ", value = " + values.get(i));
    }
}

The output:

Item = item1, value = 100
Item = item2, value = 50
Item = item3, value = 200

Keep in mind I'm just doing simplistic string splitting here with no error handling code - you may want to add that if you value robust code, particularly if there's a possibility your input data may not be valid (eg, "item4:hello" will generate a java.lang.NumberFormatException).

score 1 · Answer 3 · edited Aug 14 '12 at 07:46

1

You can use StringTokenizer class for your requirement.

StringTokenizer st = new StringTokenizer(yourString, ":");
arrayOne[0] = st.nextToken();
arrayTwo[0] = st.nextToken();

edited Aug 14 '12 at 07:46

Lucifer

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answered Aug 14 '12 at 07:29

JackTools.Net

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score 0 · Answer 4 · answered Aug 14 '12 at 07:28

0

You can use split() method for string.

     String[] temp = yourString.split(":");

Try this.

answered Aug 14 '12 at 07:28

Akshay

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score 0 · Answer 5 · answered Aug 14 '12 at 07:33

Java provides the split function in strings. str.split(":") for "item:100" returns a String[] with the elements {"item1","100}. Now just iterate through the split arrays and build a combined array of the two parts.

Source: http://docs.oracle.com/javase/1.4.2/docs/api/java/lang/String.html#split(java.lang.String)

how to get particular part of string?

5 Answers5