swing - Many copies of "Applet started" string in java applet -

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i created applet using threads. when run , change size of window see few copies of "applet started" string. wonder why , how fix that?

when strin starts? here code:

import java.awt.color; import java.awt.graphics; import java.awt.graphics2d; import java.util.random;  import javax.swing.japplet;   public class app extends javax.swing.japplet {     /**     *      */    random generator = new random();     public int n = 15;    public int m = 15;    public int k = 200;    public int size = 25;    public kwadrat[][] watki;    public double p = 0.98;    public boolean sth = true ;     /**     * function initializes threads given data     * @exception numberformatexception when there no data html code     *      */    public void init(){         try{n = integer.parseint(getparameter("n"));}       catch( numberformatexception e){          system.out.println("nieprawidłowy parametr: n");       }       catch( nullpointerexception e){}        try{m = integer.parseint(getparameter("m"));}       catch( numberformatexception e){          system.out.println("nieprawidłowy parametr: m");       }       catch( nullpointerexception e){}        try{k = integer.parseint(getparameter("k"));}       catch( numberformatexception e){          system.out.println("nieprawidłowy parametr: k");       }       catch( nullpointerexception e){}        try{ p = double.parsedouble(getparameter("p"));}       catch( numberformatexception e){          system.out.println("nieprawidłowy parametr: k");       }       catch( nullpointerexception e){}        watki = new kwadrat[n][m];       (int = 0 ; < n ; ++i)       (int j = 0 ; j < m ; ++j){          watki[i][j] = new kwadrat(10+i*size,                                      10+j*size,                                      i,                                      j,                                      size,                                      (int)(k*(generator.nextdouble()+0.5)),                                      new java.awt.color(generator.nextint(255),                                                         generator.nextint(255),                                                         generator.nextint(255)                                                         )                                      );       }       }    /**     * start method start threads     */    public void start(){         (int = 0 ; < n ; ++i)        (int j = 0 ; j < m ; ++j){          thread t;          t = new thread( new movingrunnable(watki[i][j]));          t.start();       }    }      /**     * paint method responsible drawing rectangles(threads)     */    public void paint(graphics g){        //super.paint(g);        //g.fillrect(0, 0, 1000, 1000);        repaint();         (int = 0 ; < n ; ++i)        (int j = 0 ; j < m ; ++j){             g.setcolor(watki[i][j].kwadratcolor);           g.fillrect(watki[i][j].x, watki[i][j].y, size, size);        }      }     /**      *       * @author seba      * class movingrunnable implements runnable includes rectangles threads      * @param b object of kwadrat class      * @param run()  main method of class. changes color of rectangles      * @exception interruptedexception when wrong sleeping thread      */     private class movingrunnable implements runnable{          private final kwadrat b;          private movingrunnable(kwadrat b){this.b=b;}          public void run(){             for(;;){                 if(generator.nextdouble()<p){                    int c1 = 0,c2 = 0,c3 = 0;                     if(b.nrx>0){                         c1 += watki[b.nrx-1][b.nry].kwadratcolor.getred();                        c2 += watki[b.nrx-1][b.nry].kwadratcolor.getgreen();                        c3 += watki[b.nrx-1][b.nry].kwadratcolor.getblue();                     }                    if(b.nrx<n-1) {                         c1 += watki[b.nrx+1][b.nry].kwadratcolor.getred();                        c2 += watki[b.nrx+1][b.nry].kwadratcolor.getgreen();                        c3 += watki[b.nrx+1][b.nry].kwadratcolor.getblue();                     }                    if(b.nry>0)   {                         c1 += watki[b.nrx][b.nry-1].kwadratcolor.getred();                        c2 += watki[b.nrx][b.nry-1].kwadratcolor.getgreen();                        c3 += watki[b.nrx][b.nry-1].kwadratcolor.getblue();                     }                    if(b.nry<m-1) {                         c1 += watki[b.nrx][b.nry+1].kwadratcolor.getred();                        c2 += watki[b.nrx][b.nry+1].kwadratcolor.getgreen();                        c3 += watki[b.nrx][b.nry+1].kwadratcolor.getblue();                     }                     b.changecolor(new java.awt.color(c1/4,c2/4,c3/4));                 }                else                    //b.changecolor(color.gray);                    b.changecolor(generator);                repaint();                try {                thread.sleep(b.wait);             } catch (interruptedexception e) {                // todo auto-generated catch block                e.printstacktrace();             }             }          }       } } /**  *   * @author seba  * @param x position in x  * @param y position in y  * @param nrx x position in watki[][] array  * @param nry y position in watki[][] array  * @param wait time of sleeping thread  * @param size size of side  * @param kwadratcolor - color of ractangle  * @param kwadrat(int,int,int,int,int,int,color) main constructor   * @param changecolor(random) changing color generating random  * @param changecolor(color) changing color given color  */ class kwadrat{     public int x;    public int y;    public int nrx;    public int nry;    public int wait;    public int size;     color kwadratcolor;     public kwadrat( int x, int y, int nrx, int nry, int size , int wait, color kwadratcolor){        this.x = x;       this.y = y;       this.nrx = nrx;       this.nry = nry;       this.size = size;       this.kwadratcolor = kwadratcolor;       this.wait = wait;     }     public void changecolor(random gen){        kwadratcolor = new java.awt.color(gen.nextint(255),                                          gen.nextint(255),                                          gen.nextint(255)                                          );    }     public void changecolor(color x){        kwadratcolor = x;    }   }


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