createCanvas(400, 400);

}

​

function draw() {

  // clear the canvas

  background(220);

  // X and Y coordinates and diameter of the circle to be drawn

  let centerX = 150;

  let centerY = 250;

  let diameter = 80;

  // Draw a circle at the chosen center with the chosen diameter

  circle(centerX, centerY, diameter);

  // Draw a small dot at the center of the circle

  circle(centerX, centerY, 3);

  // Print the center and diameter in the top-left corner

  text("Center X: " + centerX,  4, 16);

  text("Center Y: " + centerY,  4, 32);

  text("Diameter: " + diameter, 4, 48);

}

​