1. ellipse(30, 200,55 ,55);

1. ellipse(30, 200,55 ,55);

1. ellipse(230, 200,55 ,55);

1. ellipse(30, 200,55 ,55);

1. ellipse(230, 200,55 ,55);

1. void draw() {
2.   ellipse(30, 200,55 ,55);
3. }

Chrisir  

void mousePressed() {
  if(value == 0) {
    value = 255;
  } else {
    value = 0;
  }
}

put the variable value into your ellipse

1. ellipse(30, 200,55 ,55);

1. ellipse(230, 200,55 ,55);

1. ellipse(230, 200,55 ,55);

1. void mousePressed() {
2.   if(w  == 270) {
3.     w = 200;  ******************** 200
4.   } else {
5.     w = 200;********************** 200 WHY
6.   }
7. }

1. ellipse( q, w, 55 ,55);

1. void Update_Position() {
2.     ellipse(q, 100,55 ,55);
3.   }

is never reached

don't use Code you don't understand 

1. // Click mouse to change
2. // the position of the rectangle
3. int value = 110;
4. void setup() {
5.   size ( 600, 600 );
6. }
7. void draw() {
8.   background(220);
9.   rect(value, 125, 50, 50);
10. }
11. void mousePressed() {
12.   if (value == 110) {
13.     value = 255;
14.   }
15.   else {
16.     value = 110;
17.   }
18. }

1. final int Side = 110;
2. String Legends[] = {
3.   "  Press me"
4. };
5. int q=200 ;
6. int w=270 ;
7. void setup () {
8.   size (600, 600);
9. }
10. void draw() {
11.   int i;
12.   int x, y;
13.   background (0);
14.   for ( int column = 0; column< 1; column++)
15.   {
16.     for ( int row = 0; row< 1; row++)
17.     {   
18.       x = column * 60 + 60  ;
19.       y = row  + 300 ;
20.       fill(111);
21.       stroke(0);
22.       rect(x, y, Side, Side );
23.     }
24.   }
25.   for (  i = 0; i < Legends.length; i++) {
26.     // textFont(DFont);
27.     fill(0);
28.     text(Legends[i], 350/4 + i * 60, 335);  
29.     textAlign(CENTER);
30.     noFill();
31.   }
32.   stroke(111);
33.   ellipse( q, w, 55, 55);
34. }
35. void Update_Position() {
36.   ellipse(q, 100, 55, 55);
37. }
38. void mousePressed() {
39.   if (w  == 270) {
40.     w = 200;
41.   }
42.   else {
43.     w = 270;
44.   }
45. }