some problems with collision detection

I've been working on some collision detection and i have managed to get it to know when it touches top bottom left or right, but now i need it so it prevents the rectangle to enter the rectangle and i don't really know how.

    Input input = gc.getInput();
    mouseX = input.getMouseX()-25;
    mouseY = input.getMouseY()-25;
    position.x = mouseX;
    position.y = mouseY;


    if(circle.intersects(rectangle)) {


        if(position.x > rectangle.getX() & position.y > rectangle.getY()-50 & position.y < rectangle.getY()+100 & input.isMouseButtonDown(input.MOUSE_LEFT_BUTTON)) {
            System.out.println("right");
        }
        if(position.x < rectangle.getX() & position.y > rectangle.getY()-50 & position.y < rectangle.getY()+100 & input.isMouseButtonDown(input.MOUSE_LEFT_BUTTON)) {
            System.out.println("left");
        }
        if(position.y <= rectangle.getY() & input.isMouseButtonDown(input.MOUSE_LEFT_BUTTON)) {
            System.out.println("top");
        }
        if(position.y >= rectangle.getY()+50 & input.isMouseButtonDown(input.MOUSE_LEFT_BUTTON)) {
            System.out.println("bot");
        }
    }
     circle.setX(position.x);
     circle.setY(position.y);

hope you guys can help me.