我要保存在数据库中平日里，所以我想通过指定int值的每一天储存。即

I want to save weekdays in database, so i thought to store it by assigning int value to each day. i.e

1 - >选 0 - >未选择

1 -> Selected, 0 -> Not Selected.

周一= 0/1

周二= 0/1

。 。 。 。

星期日= 0/1。

但是，这将使7列的 DB 。所以我在想，如果有人可以帮助我，如果我应该将其存储在一个单一的阵列和检索为进一步利用的价值。我正在读的一些例子在互联网上，但没有得到它在一个简单的方法。

But this will make 7 columns in DB. So I was thinking if anyone can help me with this if I should store it in a single array and retrieve the values for further use. I was reading some examples over internet but didn't get it in a easy way.

推荐答案

要插入7个值一列，你可以用逗号分隔符像这样

To insert 7 values in one column you can use comma separator like this

在这里Total_Score_P1是一个字符串数组

where Total_Score_P1 is an string array

//字符串数组

String[]  Total_Score =  new String[] { p1e1,p1e2,p1e3,p1e4,p1e5,p1e6 };


// Convderting it into a single string 

String result_ScoreP1 = ("" + Arrays.asList(Total_Score_P1)).
             replaceAll("(^.|.$)", "  ").replace(", ", "  , " );

result_ScoreP1将

result_ScoreP1 will be

//输出这个

result_ScoreP1 = "p1e1,p1e2,p1e3,p1e4,p1e5,p1e6";

将它插入在数据库中的一个字符串， 当检索它的部分再次突破像

insert it as a single string in database and when retrieve it in again break in parts like

//一个字符串数组列表

// a string array list

//查询解雇

public ArrayList<String> rulTable(String id) {
        // TODO Auto-generated method stub
        ArrayList<String> Ruleob = new ArrayList<String>();

        Cursor c_rule;

        try
        {
            c_rule = db.query(NameTable, new String[]{
                    columns1        
            },
            Rule_COurseID + "=" + id ,
                              null, null, 
                              null, null, null);

            c_rule.moveToFirst();

            // if there is data available after the cursor's pointer, add
            // it to the ArrayList that will be returned by the method.
            if (!c_rule.isAfterLast())
            {
                do
                {

                    Ruleob.add(c_rule.getString(0));

                }
                while (c_rule.moveToNext());
            }

            // let java know that you are through with the cursor.
            c_rule.close();
        }
        catch(Exception e)
        {


        }
        return Ruleob;


    }


//list to get elements 

 ArrayList<String>  ListOne = new ArrayList<String>();

ArrayList<String> row ;

    try{
// received values
        row = db.TheTable(id);
        String r1 = row .get(0);

}

catch(Exception e)

{

}


 StringTokenizer st2 = new StringTokenizer(r1, "||");

            while(st2.hasMoreTokens()) {
            String Desc = st2.nextToken();
               System.out.println(Desc+ "\t" ); 
            ListOne.add(Desc); 

//   
            }