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stringloopswhile-loopcompareinfinite

with statement to compare string

I'm trying to evaluate user input, but the while statement seems to go into an infinite loop without asking for input.

import javax.swing.JOptionPane;

public class StringMethodsTwo {

    public static void main(String[] args)
    {
        String sFullName = " ";
        String prompt = "Please enter your full name:";
        while(sFullName.startsWith(" "));
        {
            sFullName = getInput(prompt);
            if(sFullName.length() < 2)
            {
                prompt = "Please enter your full name, \"<first> <middle> <last>\":";
            }
        }
    }

    public static String getInput(String prompt)
    {
        return JOptionPane.showInputDialog(null, prompt);
    }
}
Solution

  • You are doing the loop

    while(sFullName.startsWith(" ")); // while(true);
{

    Delete the ";"