How to fix exception java.lang.StringIndexOutOfBoundsException?

Question

Here is my code:

public VerifyTopicNotificationPage timeOfReceivedTopic()
{
    Date objDate = new Date(); // Current System Date and time is assigned to objDate
    SimpleDateFormat sdf;
    sdf = new SimpleDateFormat("E, MM dd, yyyy hh:mm");
    String dateString = sdf.format(objDate);
    System.out.println("Date in the format : "+dateString);
    Date dateObject = new Date();
    System.out.println("Syshour is : " + objDate.getHours() + "  " + "SysMin is : " + objDate.getMinutes());
    //try for notification
    int counter=0;
    Boolean flag=false;
    while((counter<10)&&(!flag)) {
        driver.navigate().refresh();
        seleniumUtil.explicitWait(2000);
        seleniumUtil.clickElement(clickOnBellIcon);
        seleniumUtil.explicitWait(4000);
        String s1="";
        String s2="";
        try {
           s1 = (driver.findElement(By.xpath("/html/body/div[3]/div/div/div/div[2]/div[2]/span")).getText())+(" ");
           s2 = s1.substring(0, 26).trim();
           System.out.println("Substring is " + s2);
           SimpleDateFormat format2 = new SimpleDateFormat("EEE, MMM dd, yyyy hh:mm a", Locale.US);
           Date date1 = null;
           try {
                date1 = format2.parse(s2);
                System.out.println("UI Date is : " + date1);
                System.out.println("UI hour is : " + date1.getHours());
                System.out.println("UI min is : " + date1.getMinutes());
           } catch (ParseException e) {
                e.printStackTrace();
            }
            if ((dateObject.getHours()==(date1.getHours())))
            {
                if (((dateObject.getMinutes() <= date1.getMinutes()) && (dateObject.getMinutes() <= dateObject.getMinutes()+10)) || ((dateObject.getMinutes() >= date1.getMinutes()) && (dateObject.getMinutes() >= dateObject.getMinutes()+10))) //3.55 -> 4.03 | 3.58
                {
                    System.out.println("Match found at " + s2);
                    flag = true;
                    break;
                }
            }
        }
        catch(Exception e)
        {
            System.out.println("encountered exception " + e);
        }
        counter++;
        seleniumUtil.explicitWait(60000);
    }
    Assert.assertTrue(flag);
    return PageFactory.initElements(driver, VerifyTopicNotificationPage.class);
}

Result of my code:

Date in the format : Tue, 02 02, 2021 09:45
Syshour is : 9  SysMin is : 45
encountered exception java.lang.StringIndexOutOfBoundsException: String index out of range: 26

I tried using trim() method but still it gives me the same exception.
How to resolve it?

Why on earth would you append a String and then substring it? What is this code supposed to do? s1.substring(0, 26).trim() — Aniket Sahrawat
– Aniket Sahrawat, Commented Feb 2, 2021 at 4:43

Aniket Sahrawat · Accepted Answer · 2021-02-02 04:47:57Z

1

s2 = s1.substring(0, 26).trim();

This happens if the length of s1 is less than 26. First, you need to check the length of the s1 and then you can apply the substring() method based on the length of s1.

edited Feb 2, 2021 at 4:47

Aniket Sahrawat

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answered Feb 2, 2021 at 4:45

srd

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