Populate a String Array dynamically

Question

I'm trying to make an app for my parents business, but at this point I found a problem.

I'm trying to get some strings from a SQLite database and to store them into an array.

I'm trying this:

            //This opens the db
            SQLManager info = new SQLManager(this);
            info.open();              

            String[] data = {"", "", "", ""};

            for (int i = 1; i == 3; i++)
            {
                data[i]=(info.getProduct(i));
            }

            info.close();
            tv.setText(data[0]);
            tv.setText(data[1]);
            tv.setText(data[2]);

info.getproduct is a method which gets a string from the database. This works fine. The problem is that i can't update the value of the array. It always shows the same.

Any idea?

Anil Jadhav · Accepted Answer · 2012-04-13 13:12:14Z

5

You Do This,

  String[] data = new String[4];

        for (int i = 0; i <data .length; i++)
        {
            data[i]=(info.getProduct(i));
        }

It Helps You.

answered Apr 13, 2012 at 13:12

Anil Jadhav

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Comments

ngesh · Accepted Answer · 2012-04-13 12:24:52Z

0

you should do this

String[] data = {"", "", "", ""};

            for (int i = 0; i <data .length; i++)
            {
                data[i]=(info.getProduct(i));
            }

answered Apr 13, 2012 at 12:24

ngesh

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Comments

Bhavin · Accepted Answer · 2012-04-13 12:27:29Z

0

the use of for loop is like this

for(initializatin;condition;increment)

while in your case it is not condition it is a statement, so work on it.

you can change to for (int i = 1; i <= 3; i++)

answered Apr 13, 2012 at 12:27

Bhavin

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Comments

Jave · Accepted Answer · 2012-04-13 12:29:52Z

0

The second argument in the for loop is supposed to work as a while-condition, meaning the loop will run while it is true, as i starts as 1 it will not be 3 and thus the loop terminates at once. You probably want a loop that looks like this:

for( int i = 1; i<=3; i++ ){ //Are you sure you want to start from 1? The first element in an array has index 0.
    //Loop
}

edited Apr 13, 2012 at 12:29

answered Apr 13, 2012 at 12:24

Jave

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Comments

Faraz Ahmed · Accepted Answer · 2012-04-17 22:23:40Z

0

this loop will never run you should change it to:

for(int i =0;i<3;i++){
}

edited Apr 17, 2012 at 22:23

user142162

answered Apr 13, 2012 at 12:27

Faraz Ahmed

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Comments

Gökhan Barış Aker · Accepted Answer · 2012-04-13 12:25:09Z

-1

not i==3, use i<3 in the for loop

answered Apr 13, 2012 at 12:25

Gökhan Barış Aker

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