Need help with a part of my Applet.

Question

When I run this applet, it is supposed to set the text of JLabel "questions" to the next question in the ArrayList "YourQuestions" and clear the textfield. But every time I click the "Next" JButton, all it does is clear the textfield. Why is this and how do I fix it?
import javax.swing.JTextField;
import java.util.Scanner;
import java.util.ArrayList;
import javax.swing.*;
import java.awt.*;
import java.applet.*;
import java.awt.event.*;
public class Quiz extends JApplet implements ActionListener {
    int AnswersCorrect=0;
    int anscorrect;
    JTextField textfield = new JTextField();
    JLabel labels[] = new JLabel[18];
    JLabel score = new JLabel();
    JLabel questions = new JLabel();
    JButton next = new JButton("Next Question");
    Scanner textScanner = new Scanner(textfield.getText());
    JButton button = new JButton("Check Answers");
    FlowLayout layout = new FlowLayout();
    JPanel panel = new JPanel();
    //ArrayList that will contain the User's Answers
    ArrayList<String> UsersAnswers = new ArrayList<String>(18);
    ArrayList<String> YourQuestions = new ArrayList<String>(18);
    //Array of Strings that are the correct answers for the quiz
    String[] answers={
    "Answer 1 goes here",
    "Answer 2 goes here",
    "Answer 3 goes here",
    "Answer 4 goes here",
    "Answer 5 goes here",
    "Answer 6 goes here",
    "Answer 7 goes here",
    "Answer 8 goes here",
    "Answer 9 goes here",
    "Answer 10 goes here",
    "Answer 11 goes here",
    "Answer 12 goes here",
    "Answer 13 goes here",
    "Answer 14 goes here",
    "Answer 15 goes here",
    "Answer 16 goes here",
    "Answer 17 goes here",
    "Answer 18 goes here",};
public void init() {
YourQuestions.add("Question 1 Here");
YourQuestions.add("Question 2 Here");
YourQuestions.add("Question 3 Here");
YourQuestions.add("Question 4 Here");
YourQuestions.add("Question 5 Here");
YourQuestions.add("Question 6 Here");
YourQuestions.add("Question 7 Here");
YourQuestions.add("Question 8 Here");
YourQuestions.add("Question 9 Here");
YourQuestions.add("Question 10 Here");
YourQuestions.add("Question 11 Here");
YourQuestions.add("Question 12 Here");
YourQuestions.add("Question 13 Here");
YourQuestions.add("Question 14 Here");
YourQuestions.add("Question 15 Here");
YourQuestions.add("Question 16 Here");
YourQuestions.add("Question 17 Here");
YourQuestions.add("Question 18 Here");
textfield.setColumns(20);
textfield.setVisible(true);
questions.setVisible(true);
next.setVisible(true);
next.addActionListener(this);
questions.setText(YourQuestions.get(0));
panel.add(questions);
panel.add(textfield);
panel.add(next);
button.addActionListener(this);   
panel.setLayout(layout);
panel.setVisible(true);
panel.setSize(200,200);
this.add(panel);
this.setVisible(true);
this.setSize(200,200);
public void actionPerformed(ActionEvent e){
if(e.getSource()==next) {
    for(int ii=1;ii<17;ii++) {
        UsersAnswers.add(textfield.getText());
        textfield.setText("");
        textfield.setText(textScanner.next());
        questions.setText(YourQuestions.get(ii));
    if(ii==17) {
    panel.add(button);
    button.setVisible(true);
    if(e.getSource()==button) {
    panel.remove(textfield);
    panel.remove(next);
        for(int checkans=0;checkans<17;checkans++){
            for(anscorrect=0; answers[checkans].equalsIgnoreCase(UsersAnswers.get(checkans)); anscorrect++){
String myString = Integer.toString(anscorrect);
questions.setText(myString + "/18");
}

Answer 1

Okay, I fixed that loop problem, but now, each time I hit the next button, it gives me my score as 0/18 and the question still hasn't changed. What do I do now?
import javax.swing.JTextField;
import java.util.ArrayList;
import javax.swing.*;
import java.awt.*;
import java.applet.*;
import java.awt.event.*;
public class Quiz extends JApplet implements ActionListener {
    int AnswersCorrect=0;
    int anscorrect;
    JTextField textfield = new JTextField();
    JLabel score = new JLabel();
    JLabel questions = new JLabel();
    JButton next = new JButton("Next Question");
    JButton button = new JButton("Check Answers");
    FlowLayout layout = new FlowLayout();
    JPanel panel = new JPanel();
    //ArrayList that will contain the User's Answers
    ArrayList<String> UsersAnswers = new ArrayList<String>(18);
    ArrayList<String> YourQuestions = new ArrayList<String>(18);
    //Array of Strings that are the correct answers for the quiz
    String[] answers={
    "Answer 1 goes here",
    "Answer 2 goes here",
    "Answer 3 goes here",
    "Answer 4 goes here",
    "Answer 5 goes here",
    "Answer 6 goes here",
    "Answer 7 goes here",
    "Answer 8 goes here",
    "Answer 9 goes here",
    "Answer 10 goes here",
    "Answer 11 goes here",
    "Answer 12 goes here",
    "Answer 13 goes here",
    "Answer 14 goes here",
    "Answer 15 goes here",
    "Answer 16 goes here",
    "Answer 17 goes here",
    "Answer 18 goes here",};
public void init() {
YourQuestions.add("Question 1 Here");
YourQuestions.add("Question 2 Here");
YourQuestions.add("Question 3 Here");
YourQuestions.add("Question 4 Here");
YourQuestions.add("Question 5 Here");
YourQuestions.add("Question 6 Here");
YourQuestions.add("Question 7 Here");
YourQuestions.add("Question 8 Here");
YourQuestions.add("Question 9 Here");
YourQuestions.add("Question 10 Here");
YourQuestions.add("Question 11 Here");
YourQuestions.add("Question 12 Here");
YourQuestions.add("Question 13 Here");
YourQuestions.add("Question 14 Here");
YourQuestions.add("Question 15 Here");
YourQuestions.add("Question 16 Here");
YourQuestions.add("Question 17 Here");
YourQuestions.add("Question 18 Here");
textfield.setColumns(20);
textfield.setVisible(true);
questions.setVisible(true);
next.setVisible(true);
next.addActionListener(this);
questions.setText(YourQuestions.get(0));
panel.add(questions);
panel.add(textfield);
panel.add(next);
button.addActionListener(this);   
panel.setLayout(layout);
panel.setVisible(true);
panel.setSize(200,200);
this.add(panel);
this.setVisible(true);
this.setSize(200,200);
public void actionPerformed(ActionEvent e){
if(e.getSource()==next) {
int ii=0;
ii += 1;
        UsersAnswers.add(textfield.getText());
        textfield.setText("");
        questions.setText(YourQuestions.get(ii));
    if(ii==17) {
    panel.add(button);
    button.setVisible(true);
    if(e.getSource()==button) {
    panel.remove(textfield);
    panel.remove(next);
        for(int checkans=0;checkans<17;checkans++){
            for(anscorrect=0; answers[checkans].equalsIgnoreCase(UsersAnswers.get(checkans)); anscorrect++){
String myString = Integer.toString(anscorrect);
questions.setText("Score: " + myString + "/18");
}