Hi, im pretty new to programming and was set a piece of work on my course. I need to draw a bar chart of figures in processing, then display the value of each bar. however if the value = 0 then i dont want the text to show.
Heres my code so far, i know its really basic, but im really shit at programming

1. {
   size(200, 600); //setup for the canvas and the background
   background(265,265,0);
   
   }
   int[] number = new int[10]; //the array
   number[0] = 6;
   number[1] = 0;
   number[2] = 9;
   number[3] = 12;
   number[4] = 25;
   number[5] = 7;
   number[6] = 0;
   number[7] = 5;
   number[8] = 0;
   number[9] = 23;
   
   int step = 20; // assigns the "step"
   int a = number[0]; // assigns each value in the array to a variable a - j
   int b = number[1];
   int c = number[2];
   int d = number[3];
   int e = number[4];
   int f = number[5];
   int g = number[6];
   int h = number[7];
   int i = number[8];
   int j = number[9];
   draw(); // draws the rectangles bellow
   {
     fill(265,100,0); // sets the colour to orange
   rect(0, 0, 20, a*step);
   rect(20, 0, 20, b*step);
   rect(40, 0, 20, c*step);
   fill(0,265,80); // sets the colour to green
   rect(60, 0, 20, d*step);
   fill(265,0,0); // and now to red
   rect(80, 0, 20, e*step);
   fill(256,100,0); // back to orange
   rect(100, 0, 20, f*step);
   rect(120, 0, 20, g*step);
   rect(140, 0, 20, h*step);
   rect(160, 0, 20, i*step);
   fill(265,0,0); // back to red
   rect(180, 0, 20, j*step);
   }
   {
     PFont font;
   font = loadFont("Serif-12.vlw"); //loads font
   textFont(font);
   textAlign(CENTER);
   fill(0);
   text(a, 10, 11);//writes out the values along the base of the bars
   text(b, 30, 11);
   text(c, 50, 11);
   text(d, 70, 11);
   text(e, 90, 11);
   text(f, 110, 11);
   text(g, 130, 11);
   text(h, 150, 11);
   text(i, 170, 11);
   text(j, 190, 11);
   }

I dont know whats the best way to do it. I tried to put an if statement at the top of the text functions, saying if the variables = 0 i.e. a=0 then the fill on teh text is the same as the background, so therefore invisible, but it just filled all the text yellow.
any help would be fantastic!
thanks, George.