as I wrote yesterday in the other thread

 
I would recommend arrays for questions, the right answers and the wrong images and
the correct images. All arrays with the same index :

1. int currentQuestion=0;

After a round (answer given, feedback given) you increase the index currentQuestion, so you come to the next question.
When all are done, game is over.

for a complete level game logic, see
http://www.openprocessing.org/sketch/76025


Greetings, Chrisir

P.S.
and thanks for posting my code without naming me

If you need an answer, please send me a personal message since this forum doesn't notify.

I believe he meant you have to use the same index to access Arrays related to the same class of object.
See reference -> http://processing.org/reference/arrayaccess.html

Code below got 3 Arrays related to the very same thing.
Each of those Arrays is a property for the same Fruit object: names[], colors[] & quantities[].
To access all characteristics for 1 fruit object, we have to use the same index.

// My fruit arrays:

final String[] names = {"banana", "apple", "pear"};
final String[] colors = {"yellow", "red", "green"};
final byte[] quantities = {4, 2, 1};

final int items = names.length;

for (int idx = 0; idx != items; ++idx) {
  final String f = names[idx], c = colors[idx];
  final byte q = quantities[idx];
  
  println("I've got " + q + " " + c + " " + f + "(s).");
}

exit();

hello,

this works

• remember that setup() runs only once whereas draw() runs again and again
• so it is no use to use while or for, instead just use an array (see reference) with an index
• the index is your level

1. //
2. final int stateNormal     = 0;
3. final int stateGameOver   = 1;
4. final int stateEvalAnswer = 2;
5. int state = stateNormal;
6. //
7. String [] questions = {
8.   "Who did it?", "Why?", "When?"
9. };
10. String [] answers = {
11.   "john", "greed", "today"
12. };
13. String typing ="";
14. String saved  ="";
15. int indexArrays = 0; // index or level
16. //
17. //
18. void setup() {
19.   size(600, 600);
20. } // func
21. //
22. void draw() {
23.   // main
24.   switch (state) {
25.   case stateNormal:
26.     normalPlay();
27.     break;
28.   case stateGameOver:
29.     background(0);
30.     fill(255);
31.     text("Game over", 100, 100);
32.     break;
33.   case stateEvalAnswer:
34.     evaluateAnswer();
35.     break;
36.   default:
37.     println ("Error 158 unknown state " + state);
38.     exit();
39.     break;
40.   }
41. } // func
42. //
43. void normalPlay() {
44.   background(0);
45.   fill(255);
46.   // image(normal, 185, -140);
47.   // image(normal, 210, 200, normal.width/2, normal.height/2);
48.   // textFont(f);
49.   textSize(60);
50.   // character text
51.   text(questions[indexArrays], 50, 50);
52.   //
53.   // wait till answer is complete
54.   text(typing, 50, 100);
55.   // has user text been entered and sent?
56.   if (!saved.equals(""))
57.   {
58.     // answer has been given now
59.     state = stateEvalAnswer;
60.   } // if
61.   //
62. } // func
63. //
64. void evaluateAnswer() {
65.   // evaluate answer
66.   text(saved, 50, 100);
67.   if (saved.equals(answers[indexArrays])) {
68.     // correct
69.     fill(2, 255, 2);
70.     text("correct", 50, 150);
71.     fill(255);
72.     text("Press return\nto play again", 50, 350);
73.   }
74.   else
75.   {
76.     // wrong
77.     fill(255, 2, 2);
78.     text("wrong...", 50, 150);
79.     fill(255);
80.     text("Press return\nto play again", 50, 350);
81.   } // else
82.   //
83. } // func
84. //
85. void keyPressed() {
86.   switch (state) {
87.     //
88.   case stateNormal:
89.     if (!(key==CODED)) {
90.       // eval key
91.       if (key == '\n' ) {
92.         // return ends the word or goes to next level
93.         saved = typing;
94.         typing = "";
95.       }
96.       else if (key == BACKSPACE) {
97.         // backspace
98.         if (typing.length()>0)
99.           typing = typing.substring (0, typing.length()-1);
100.       }
101.       else {
102.         // next letter
103.         typing = typing + key;
104.       }
105.     } // if
106.     break;
107.     //
108.   case stateGameOver:
109.     // any key resets
110.     state = stateNormal;
111.     indexArrays=0;
112.     break;
113.     //
114.   case stateEvalAnswer:
115.     // from the state of showing if an answer was right
116.     // go back to normal play
117.     if (key == '\n') {
118.       if (indexArrays < questions.length-1) {
119.         indexArrays++;
120.         state = stateNormal;
121.       }
122.       else {
123.         state = stateGameOver;
124.       }  
125.       saved = "";
126.       typing = "";
127.     } // if
128.     break;
129.     //
130.   default:
131.     println ("Error 132 unknown state " + state);
132.     exit();
133.     break;
134.     //
135.   }// switch
136.   //
137. } // func
138. //

Greetings, Chrisir     

If you need an answer, please send me a personal message since this forum doesn't notify.