Checkbox,java,selecterd,if and else

so I drew a machinist and it needs to disappear when I click on the checkbox but I don't know where I am doing wrong

    if(machinist.isSelected() == true){
    g.setColor(Color.PINK);
    g.drawOval(865, 510, 60, 60);
    g.fillOval(865, 510, 60, 60);

    g.setColor(Color.black);
    g.drawOval(880, 525, 5, 5);
    g.fillOval(880, 525, 5, 5);

     g.setColor(Color.black);
    g.drawOval(900, 525, 5, 5);
    g.fillOval(900, 525, 5, 5);

    g.setColor(Color.blue);
    g.drawRect(875, 495, 40, 20);
    g.fillRect(875, 495, 40,20);

    g.setColor(Color.blue);
    g.drawRect(870, 495, 50, 5);
    g.fillRect(870, 495, 50, 5);

    g.setColor(Color.blue);
    g.drawRect(890, 570, 8, 60);
    g.fillRect(890, 570, 8, 60);