Here is the program that draws random circles on the screen using the JAVA language
Here is the program that draws random circles on the screen using the JAVA language. package disegno; import java.awt.*; import javax.swing.*; public class Tela extends JPanel{ public void paintComponent(Graphics g) { super.paintComponent(g); this.setBackground(Color.WHITE); g.setColor(Color.BLACK); DisegnaCerchiA_Caso(3,10000,g); } public void DisegnaCerchiA_Caso(int raggio,int numeroCerchi,Graphics g) { int x,y; int numero=0; while(numeroCerchi>0) { x=(int)(Math.random()*1000); y=(int)(Math.random()*1000); g.setColor(Color.BLACK); if (IsPrime(numero)==1) { g.setColor(Color.RED); g.drawOval(x, y, raggio, raggio); } else { g.drawOval(x, y, raggio, raggio); } numero++; numeroCerchi--; } } public int IsPrime (int n) { int primo=1; int fattore=2; boolean exit=false; if (n==1) {exit=true; primo=0;} while(fattore<=n/2 && !exit) { if (n%fattore==0) { primo=0; exit=true; } fattore ++; } return primo; } } here is the result. In red, I highlighted the prime numbers. Rare between 0 and 10000. here is the file where you find the main: package disegno; import javax.swing.*; public class Disegno { public static void main(String[] args) { JFrame t= new JFrame("Grafica Iterativa"); t.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
Tela p = new Tela(); t.add(p); t.setSize(1000, 1000); t.setVisible(true);
} } To put the code into function, follow the following video
