float angle = 0;
int speed = 10;
int k = 0;

void setup()
{

size(500,500);  
background(120,120,120);
}
void draw()
{

background(120,120,120);
translate(width/2, height/2);
angle++;
rotate(radians(angle));
textSize(25);
text("rotate",width/6,height/6);

}