//BitwiseDemo.java
//位運算
public class BitwiseDemo
{

    static final int VISIBLE = 1;
    static final int DRAGGABLE = 2;
    static final int SELECTABLE = 4;
    static final int EDITABLE = 8;

    public static void main(String[] args)
    {
        int flags = 0;
        flags = flags | VISIBLE;
        flags = flags | DRAGGABLE;
        if ((flags & VISIBLE) == VISIBLE) 
		{
            if ((flags & DRAGGABLE) == DRAGGABLE) 
			{
                 System.out.println("Flags are Visible and Draggable.");
            }
        }

        flags = flags | EDITABLE;
        if ((flags & EDITABLE) == EDITABLE)
  		{
	       System.out.println("Flags are now also Editable.");
        }
    }
}