java 不同目录用一个属性存储多个状态值

public class MultipleStatesTest {

	private long mSettingsPolicy = 0;
	
	public static void main(String[] args) {
		// TODO Auto-generated method stub
		MultipleStatesTest caseitmeID =   new MultipleStatesTest();
		caseitmeID.testA(1, false);
		caseitmeID.testA(2, true);
		caseitmeID.testA(5, true);
		caseitmeID.testA(6, false);
		caseitmeID.testA(16, false);
		caseitmeID.testA(23, true);
		caseitmeID.testA(11, true);
		caseitmeID.testA(76, false);
		caseitmeID.testA(43, true);
		caseitmeID.testA(45, false);
		caseitmeID.testA(56, true);
		caseitmeID.testA(89, false);
		caseitmeID.testA(77, false);
	}

	public void testA(int index ,boolean visible) {
        if (visible) {
            mSettingsPolicy &= ~(1 << index);
        } else {
            mSettingsPolicy |= (1 << index);
        }
        System.out.print(index +" result ="+ mSettingsPolicy+" ,statue =");
        boolean state = (mSettingsPolicy & (1 << index)) == 0;
        System.out.println(state);
	}
	
}

----------------输出结果---------------------
1 result =2 ,statue =false
2 result =2 ,statue =true
5 result =2 ,statue =true
6 result =66 ,statue =false
16 result =65602 ,statue =false
23 result =65602 ,statue =true
11 result =65602 ,statue =true
76 result =69698 ,statue =false
43 result =69698 ,statue =true
45 result =77890 ,statue =false
56 result =77890 ,statue =true
89 result =33632322 ,statue =false
77 result =33632322 ,statue =false

示例代码二

    protected void setUserState(int userID, final int statBitIdx)
    {
        Integer ustat = this.userStat.get(userID);
        if(ustat == null){
            ustat = 0;
        }
        ustat |= (1 << statBitIdx);
        this.userStat.put(userID, ustat);
    }

    protected void clearUserState(int userID, final int statBitIdx)
    {
        Integer ustat = this.userStat.get(userID);
        if(ustat == null){
            return ;
        }
        ustat = (ustat & (~(1 << statBitIdx)));
        this.userStat.put(userID, ustat);
    }

    protected boolean hasUserState(int userID, final int statBitIdx)
    {
        Integer ustat = this.userStat.get(userID);
        if(ustat == null){
            return false;
        }
        return (ustat & (1 << statBitIdx)) != 0;
    }