在while循环中获取TextField输入，而不是JOptionPane Java

Question

I'm struggling to get the user input from a Textfield when my program enters a while loop. Previously my program used a JOptionPane but now that i am relying on a button click to sen information to my engine class i get many errors

Here is my engine

public class engine  {
public final Object buttonClickedLock = new Object(); // possible clean up
guess gs = new guess();
public  boolean close = true;
char [] charda = new char[20];
char [] charwo = new char[20];
Highscore words = new Highscore();
main mn = new main();
int guesses =7;
char guess;


public engine() {

}

public void enginer(char guess) { //throws for wait method


    int count = 0;


    String word = words.getWord();


    for(int i = 0; i<word.length(); i++)
    {
        //instantiates two arrays one of dahses and one with the word
        charwo[count] = word.charAt(i);
        charda[count]= '_';
        count++;
    }

    for(int l=0; l<count; l++)
        {
            System.out.print(" "+charda[l]);

        }

    while(guesses !=0 && !Arrays.equals(charwo, charda))
    {
        guess = guess; //This is previously where my JoptionPane went 



        if(word.toUpperCase().contains(String.valueOf(guess).toUpperCase()))
        {


            for(int k = 0; k<word.length(); k++)
            {
                if(String.valueOf(guess).toUpperCase().equals(String.valueOf(charwo[k]).toUpperCase()))
                {
                            charda[k]=charwo[k];

                                    for(int l=0; l<count; l++)
                            {   //prints dashes here to avoid a letter being chopped off by the program stopping in the middle
                                System.out.print(" "+charda[l]);

                            }
                }

              }

        }

        else
        {

                guesses = guesses-1;

                System.out.println("guesses left "+guesses);
                //Re-displays dashes 
                for(int l=0; l<count; l++)
                {
                System.out.print(" "+charda[l]);

                }

        }

           if(Arrays.equals(charwo, charda))
           {
               System.out.println("");
           System.out.println("You are Winner");

                    }
     }

}



}

Any information you can provide me with would be really helpful and if this is too unspecific i will happily post as much more info as you need :)

Answer 1

What was the purpose of JOptionpane in this code? There no relation between JOptionPane and JTextField in the given code. Whether you put a JoptionPane or not the you can always get input from textfield. eg- String strTemp = textfield.getText();// this will give you the text field value.

I think you are passing this getText() value directly to the method enginer() which accepts character. Are you getting invalid argument error?