Databases
StackOverflow2013
Postsdbo
POHow do I use multidimensional arrays with array list?
 

Note that there are some explanatory texts on larger screens.

plurals
  1. POHow do I use multidimensional arrays with array list?
    primarykey
    data
    text
    <p>I want to add some records from sql query but the output is not correct. Always return the last record. </p> <p>The correct list is : </p> <p>John</p> <p>Nick</p> <p>Mary</p> <p>Joe</p> <p>,but always return Joe.</p> <p>This is the method to add the elements:</p> <pre><code>public ArrayList&lt;String[][]&gt; getFiledArrayList() { // ArrayList&lt;String[][]&gt; fieldsList = new ArrayList&lt;&gt;(); String[][] tempRow = new String[1][2]; ResultSet result; String sql = "select id, name_of from field"; result = database.exeQueryStatement(sql); try { while(result.next()) { tempRow[0][0] = result.getString("id"); // System.out.println(tempRow[0][0]); tempRow[0][1] = result.getString("name_of"); // System.out.println(tempRow[0][1]); fieldsList.add(tempRow); System.out.println(fieldsList.get(0)[0][1]); } } catch (SQLException ex) { Logger.getLogger(FieldManage.class.getName()).log(Level.SEVERE, null, ex); } return fieldsList; </code></pre> <p>I put the <code>id</code> and the <code>name_of</code> in a <code>String[1][2]</code> table and I want to show the <code>name_of</code> in a jComboBox. Ι want to make an insert and watch the <code>name_of</code> with <code>id</code></p> <pre><code>FieldManage fieldmanage = new FieldManage(); ArrayList&lt;String[][]&gt; listOfField; listOfField = fieldmanage.getFiledArrayList(); String[] fields = new String[listOfField.size()]; System.out.println(listOfField.get(0)[0][0]); for (int i=0; i&lt;listOfField.size(); i++) { fields[i] = listOfField.get(i)[0][1]; System.out.println(fields[i]);//test print show always joe! } jComboFields.setModel(new javax.swing.DefaultComboBoxModel(fields)); </code></pre> <p>This code always return Joe.</p> <p>Also I want to know if there is better way to match an jcombo element with an <code>id</code>.</p>
    singulars
    1. PO
      singulars
      1. PTAnswer
    1. This table or related slice is empty.
    1. PTQuestion
    1. USdeleted_user
    1. USthanassis
    plurals
    1. This table or related slice is empty.
    1. This table or related slice is empty.
    1. This table or related slice is empty.
    1. PO
      singulars
      1. PTAnswer
    2. PO
      singulars
      1. PTAnswer
    3. PO
      singulars
      1. PTAnswer
    1. This table or related slice is empty.
    1. This table or related slice is empty.
 

Querying!

 
Guidance
A row detail

Detail views are divided into sections. All the information in the data section comes from columns in the selected row. The other sections display data from other, related rows.

Related data can be related in a to-one or a to-many fashion. Captions of data related in a to-many fashion link to a list view showing a filtered view of the table.

Try moving around until you find a non-empty to-many entry and click on the label to get to one. You can move back to the root by clicking on the database name in the header.

SQuiL has stopped working due to an internal error.

If you are curious you may find further information in the browser console, which is accessible through the devtools (F12).

Reload