/*
 * Door
 * 2007
 * 門禁系統的電子門
 */
package s2javaoo.xmal.sys;

public class Door {
    public final static String OPEN  = "門已開啟"; 
    public final static String CLOSE = "門已關閉"; 
    private String state   = CLOSE; // 電子門狀態

    /**
     * 初始化電子門
     */
    public Door(){
        this.setState(CLOSE);
    }

    /**
     * 開啟電子門
     */
    public void open(){
        this.setState(OPEN);
    }

    /**
     * 關閉電子門
     */
    public void close(){
        this.setState(CLOSE);
    }

    /**
     * @return state
     */
    public String getState() {
        return state;
    }
    
    /**
     * @param state 要設置的 state
     */
    private void setState(String state) {
        this.state = state;
    }
}