void setup() {
  /// Setup: 600x400( for 500x300 table).
  size(600, 400);
  x1=50; x2=width-50;
  y1=50; y2=height-50;
  initiallize
  class Button{
    ////Different kinds of buttons ////
    int kind=2;
    float x, y;
    float w=60, h=30;
    String s="";
    int r,g,b;
    //// CONSTRUCTORS ////
    Buttton( String s, float x, float y, int r, int g, int b) {
      this.x=  s;
      this.x=  x;
      this.y=  y;
      this.r=  r;
      this.g=  g;
      this.b=  b;
      //METHODS//
      void show() {
        //Draw it//
        stroke(0);
      
  
  //make the buttons
  b[0]=  new Button 
  b[1]=  new Button
  b[2]=  new Button
  b[3]=  new Button
  b[4]=  new Button