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Thread: String.split"char"; error

  1. #1
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    Default String.split"char"; error

    i am scanning in lines from a document. i want to store each section of the line into seperate strings variables. each section of the line is seperated by ",". the problem is if there is a space in the variable i gett an arrayOutOfBounds exception for example
    ...,hello world,yousuck,
    here ,hello world, will throw exception where as ,yousuck, would be fine.
    so i am assuming it is spliting at space allso as System.out.println prints them on seperate lines im not really sure why it is causing error any help would be great thanks.

    here is code
    String in=x.nextLine();
    String[] tokens = in.split("\\,");
    String one=tokens[0];
    String two=tokens[1];


  2. #2
    Super Moderator pbrockway2's Avatar
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    Default Re: String.split"char"; error

    What is the exception being thrown? And what is the code to which it refers?

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    Default Re: String.split"char"; error

    sorry the scanner loads the linies of a text doc into an arraylist
    each line is two string seperated by","
    code uses selinium
    example.. htp://www.google.com,gofish
    htp://www.google.com,go fish
    for(int u=0;u<sitesL.size();u++){
                        String in=sitesL.get(u);
                        String[] tokens = in.split("\\,");
                        String one=tokens[0];
                        String two=tokens[1];//line throws error
                        WebDriver targetSite=new FirefoxDriver();
                        targetSite.manage().window().setPosition(posg);
                        targetSite.manage().window().setSize(sizeg);
                        targetSite.get(one);//gos to google
                        WebElement target = targetSite.findElement(By.className(classname));//finds search
                        target.sendKeys( two);enters text
    here the first line will work fine but the second will throw excption
    Exception in thread "main" java.lang.ArrayIndexOutOfBoundsException: 1
    	at chat.Chat.disher(Chat.java:81)//this is line with              String two=tokens[1];
    	at chat.Chat.main(Chat.java:37)//this is call from main
    BUILD STOPPED (total time: 1 minute 18 seconds)
    however it still enters text to search correctly google will search go fish correclty the programe then just throws error

  4. #4
    Super Moderator pbrockway2's Avatar
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    Default Re: String.split"char"; error

    What is the string u that is being split? Print it, along with the length and the contents of the array. Perhaps u does not have the value you think ("htp://www.google.com,gofish" and "htp://www.google.com,go fish")

    ---

    split("\\,") does split the string on commas as can be seen by removing the other logic and looking merely at what split() does.

    public class SplitEg {
        public static void main(String[] args) {
            test("htp://www.google.com,gofish");
            test("htp://www.google.com,go fish");
        }
     
        private static void test(String str) {
            System.out.printf("Looking at -->%s<--%n", str);
            String[] arr = str.split("\\,");
            System.out.printf("Found %d elements:%n", arr.length);
            for(int i = 0; i < arr.length; i++) {
                System.out.printf("    -->%s<--%n", arr[i]);
            }
        }
    }

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