How to Resolve the Error: sendKeys(CharSequence[]) in WebElement Not Accepting String Arguments

Question

What does the error "The method sendKeys(CharSequence[]) in the type WebElement is not applicable for the arguments (String)" mean, and how can I resolve it?

WebElement element = driver.findElement(By.id("myElement"));

element.sendKeys("input text");

Answer

The error message indicates that the sendKeys method expects an argument of type CharSequence array, rather than a String. This can occur when the method is misused or when the input data types do not match the expected parameters.

// Correct implementation of sendKeys method
WebElement element = driver.findElement(By.id("myElement"));

element.sendKeys(new CharSequence[]{"input text"});

Causes

  • The sendKeys method is defined to accept a varargs parameter of type CharSequence, which means you can pass multiple CharSequence objects.
  • Passing a single String directly as an argument instead of enclosing it in an array leads to this type compatibility error.
  • Using an outdated WebDriver version that may not support expected parameter types. Check your library dependencies.

Solutions

  • Wrap the String argument in a CharSequence array by using new CharSequence[]{yourString}. For example: // Correct usage element.sendKeys(new CharSequence[]{"input text"});
  • If sending multiple strings, you can pass them like this: element.sendKeys("first input", "second input", "third input");
  • Make sure that your WebDriver and browser libraries are up-to-date to avoid compatibility issues. Check the documentation for any breaking changes in the APIs.

Common Mistakes

Mistake: Trying to pass a String directly: element.sendKeys("input text")

Solution: Use an array of CharSequence if you encounter this error: element.sendKeys(new CharSequence[]{"input text"});

Mistake: Forgetting to import necessary WebDriver libraries or using deprecated ones.

Solution: Ensure you're using the latest version of Selenium WebDriver and that all imports are correct.

Helpers

  • sendKeys method
  • WebElement sendKeys error
  • CharSequence in sendKeys
  • Selenium WebDriver
  • WebElement not applicable for String

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