Check Gender Field For Free

Printf("Enter the Gender(M/F) : "); - This line prompts the user to enter a gender. gen = input. next(). charAt(0); - This line reads the input from the user and stores the first character in the gen variable.

Follow the below steps to implement the idea: Create a regular expression for Gender. If the Input string is empty, return False. Else, Use the Pattern class to compile the regex formed. Use the matcher function to check whether the Gender Is valid or not. If it is valid, return true. Otherwise, return false.

Use the querySelector() method to check whether a radio button is selected. Programmers can use JavaScript's querySelector() method to select any HTML element. Here, we have used the querySelector() method to select only the checked radio button. If no radio button is selected, it returns a null value.

The ?ValidateForm()? function is defined in a script tag in the head of the HTML document. This function takes a single parameter, which is the form object that the button belongs to. The function checks if neither the ?Male? radio button nor the ?Female? radio button has been selected.

Follow the below steps to implement the idea: Create a regular expression for Gender. If the Input string is empty, return False. Else, Use the Pattern class to compile the regex formed. Use the matcher function to check whether the Gender Is valid or not. If it is valid, return true. Otherwise, return false.

The Boolean value isFemaleshould be used as a distinctive parameter for gender identity. This is, of course, just an example, but men and women are commonly used in Boolean expressions and the corresponding exercises. The problem is that a Boolean variable can have only one of two values: true or false.

Any piece of information that can have two and only two choices should be declared as data type Boolean. For example, GENDER should be Boolean because there are only two choices.