What is the result of using the isBlank() method on a string?

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Multiple Choice

What is the result of using the isBlank() method on a string?

The isBlank() method is specifically designed to check if a string is empty or consists solely of whitespace characters. When this method is called, it will return true if the string contains only spaces, tabs, or line breaks, which means that the string has no visible characters. This makes option B the correct answer as it directly reflects the functionality of the isBlank() method. Strings that are not empty or contain non-whitespace characters will return false when this method is called. Additionally, the method does not include null as a valid input; calling isBlank() on a null value would lead to a NullPointerException, thus confirming that it does not return true for null values. Understanding these aspects clarifies why option B accurately represents the behavior of the isBlank() method.

The isBlank() method is specifically designed to check if a string is empty or consists solely of whitespace characters. When this method is called, it will return true if the string contains only spaces, tabs, or line breaks, which means that the string has no visible characters. This makes option B the correct answer as it directly reflects the functionality of the isBlank() method.

Strings that are not empty or contain non-whitespace characters will return false when this method is called. Additionally, the method does not include null as a valid input; calling isBlank() on a null value would lead to a NullPointerException, thus confirming that it does not return true for null values. Understanding these aspects clarifies why option B accurately represents the behavior of the isBlank() method.

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