Empty String validation for Multiple JTextfield

Question

Is there a way to validate a number of JTextfields in java without the if else structure. I have a set of 13 fields, i want an error message when no entry is given for any o

Answer 1

Here is one way to do it:

public static boolean areAllNotEmpty(String... texts)
{
    for(String s : texts) if(s == null || "".equals(s)) return false;
    return true;
}

// ...

if(areAllNotEmpty(firstName, lastName, emailAddress, phone))
{
    JOptionPane.showMessageDialog(null, "No data entered");
}