Passing JText to a method and returning various values

ok, I will try to keep this short.
I have 2 files ( a and b ) main file and a seperate class file. I was instructed to create a GUI interface to my main-a file and use some of the methods I created in my b file.
The program is very easy. Enter a students name and multiple scores. Thes I need to get the total, average and highest. Now the way I initially wrote this programs everything was read into a Input Dialog, but now have to enter everything into Jtext area. Now everything compiles and even runs. However, everything (totals, avg, score, etc..) comes out as a zero, it does not retain any values. I actually even had to change my while loop in b file because it would lock everything up. Anyway I hope someone could help.
here is the code.
file B (main file)
import javax.swing.*;
import java.awt.*;
import java.awt.event.*;
public class Students extends JFrame implements ActionListener
          JPanel picture = new JPanel();
          JPanel info = new JPanel();
          JPanel buttons = new JPanel();
          JPanel btnInfo = new JPanel();
          String text = "<html>Student Grades Directions" +
          "<UL>" +
          "<LI>Enter the Students Name. " +
          "<LI>Enter the Students Grade. " +
          "<LI>Click Ok to enter another grade. " +
          "<LI>Click Submit to submit the information and retrieve breakdown. " +
          "<LI>When complete click Exit. " +
          "</UL></html>";
          JLabel pictureLabel = new JLabel( text, new ImageIcon("connexions.gif"), JLabel.LEFT);
          JLabel nameLabel = new JLabel("Enter the Students Name:");
          JTextField nameText = new JTextField(10);
          JLabel gradeLabel = new JLabel("Enter the Students Grade:");
          JTextField gradeText = new JTextField(10);
          JButton ok = new JButton("OK");
          JButton clear = new JButton("Clear");
          JButton submit = new JButton("Submit");
          JButton exit = new JButton("Exit");
          public Students(String t)
               super(t);
               WindowUtilities.setNativeLookAndFeel();
               Container c = getContentPane();
               Student s = new Student();
               StuChange sc = new StuChange();
               picture.setBorder(BorderFactory.createBevelBorder(1));
               picture.add(pictureLabel);
               btnInfo.add(picture, "North");
               info.add(nameLabel);
               info.add(nameText);
               info.add(gradeLabel);
               info.add(gradeText);
               info.setBorder(BorderFactory.createEtchedBorder(Color.yellow, Color.black));
               btnInfo.add(info);
               c.add(btnInfo, "Center");
               buttons.add(ok);
               buttons.add(clear);
               buttons.add(submit);
               buttons.add(exit);
               ok.addActionListener(this);
               clear.addActionListener(this);
               submit.addActionListener(this);
               exit.addActionListener(this);
               c.add(buttons, "South");
               pack();
               addWindowListener(new ExitListener());
               setSize(650, 250);
               setVisible(true);
               Dimension screenSize =
Toolkit.getDefaultToolkit().getScreenSize();
               Dimension size = getSize();
               screenSize.height = screenSize.height/2;
               screenSize.width = screenSize.width/2;
               size.height = size.height/2;
               size.width = size.width/2;
               int y = screenSize.height - size.height;
               int x = screenSize.width - size.width;
               setLocation(x, y);
          public void actionPerformed(ActionEvent ae)
               Object btn = ae.getSource();
               Student s = new Student();
               if ( btn == ok )
                    s.grade = Double.parseDouble(gradeText.getText());
                    s.setGrades(gradeText);
               if ( btn == clear )
                    nameText.setText("");
                    gradeText.setText("");
               if ( btn == submit )
                    if ( nameText.getText().length() == 0 )
                         JOptionPane.showMessageDialog(null, "you must Enter a students name");
                         else
                         JOptionPane.showMessageDialog(null, "Your information has been submitted");
                         s.name = nameText.getText();
                         JOptionPane.showMessageDialog(null, s.getName());
               if ( btn == exit )
                    System.exit(0);
     public static void main(String[]args)
          Students s = new Students("Test");

file B (class file)
import javax.swing.*;
public class Student
     protected String name;
     protected int counter, answer;
     protected double avg, grade, total, temp, high;
     public Student()
          name = "";
          total = 0;
          avg = 0;
          counter = 1;
          temp = 0;
          high = 0;
     public double getHigh()
          return high;
     public String getName()
          return name;
     public double getAvg()
          return avg;
     public double getTotal()
          return total;
     public String setName()
          while ( name.length() == 0 )
               name = JOptionPane.showInputDialog( "Enter the Students Name.");
          return name;
     public void setGrades(double a )
          double tempgrade = 0;
          grade = a;
          //grade = Integer.parseInt(JOptionPane.showInputDialog("Please enter " + name + "'s numeric
     //grade."));
               if ( grade == -1 )
                    JOptionPane.showMessageDialog(null, name + "'s letter grade is " + (double) getAvg() );
               else
                    if ( grade <= -2 || grade > 100 && grade != 0 )
                         JOptionPane.showMessageDialog( null, "You must enter a number between 0 -
                         100");
                         grade = 0;
                    else
                    //grade = tempgrade;
                         total += grade;
                         high = Math.max(temp, grade);
                         temp = high;
                         avg = ( total / counter );
                         counter += 1;
                    grade = Integer.parseInt(JOptionPane.showInputDialog("Please enter " + name + "'s
               numeric grade."));
     public void getLetterGrade( double a)
          avg = a;
          if ( avg >= 90 )
               JOptionPane.showMessageDialog(null, name + " has an A" );
          else if ( avg >= 80 )
               JOptionPane.showMessageDialog(null, name + " has a B" );
          else if ( avg >= 70 )
               JOptionPane.showMessageDialog(null, name + " has a C" );
          else if ( avg >= 60 )
               JOptionPane.showMessageDialog(null, name + " has a D" );
          else
               JOptionPane.showMessageDialog(null, name + " has an F" );
     public int Intro(int a)
          answer = a;
          answer = Integer.parseInt(JOptionPane.showInputDialog(null, "Press\n1 to enter Students with grades\n2 to
          enter Students with extra credit (100 points)\n3 Exit"));
               if ( answer != 1 && answer != 2 && answer != 3 )
                    JOptionPane.showMessageDialog(null, "You should have went with\n1, 2 or 3 have fun
          reloading!");
          return answer;
}

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Message was edited by: Douten
Message was edited by: Douten
Message was edited by: Douten

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END IF;
RETURN V_sal;
WHEN OTHERS THEN
MSG := SUBSTR(SQLERRM, 1, 70);
DBMS_OUTPUT.PUT_LINE(MSG);
END GET_sal;
END test_multi; -- End package

A way to do this in 10g or above...
SQL> ed
Wrote file afiedt.buf
1 with e as (select '7499,7698,7654,7902' as enos from dual)
2 --
3 select empno, sal
4 from emp
5 where empno in (select regexp_substr(enos,'[^,]+',1,rownum)
6                  from   e
7*                 connect by rownum <= length(regexp_replace(enos,'[^,]'))+1)
SQL> /
     EMPNO        SAL
      7902       3000
      7698       2850
      7654       1250
      7499       1600
SQL>As for Oracle 8, .... well.... like Oracle, I no longer use unsupported versions, so I'd recommend you upgrade to something that is supported.

Case to query multiple values and return single value to different table

Hi this is my first table:
with Table_1
as
      select 'CAR' Object, 2000 Policy    from dual
      union all
      select 'BIKE' Object, 2000 Policy from dual
      union all
      select 'HOUSE' Object, 2000 Policy from dual
      union all
      select 'MOBILE' Object, 2000 Policy from dual
      union all
      select 'MONEY' Object, 2000 Policy from dual
      union all
      select 'CREDIT' Object, 2000 Policy from dual
      union all
      select 'SCOOTER' Object, 2001 Policy    from dual
      union all
      select 'BIKE' Object, 2001 Policy from dual
      union all
      select 'BEACH' Object, 2001 Policy from dual
      union all
      select 'HOUSE' Object, 2001 Policy from dual
      union all
      select 'MONEY' Object, 2001 Policy from dual
      union all
      select 'CREDIT' Object, 2001 Policy from dual
      union all
      select 'DOOR' Object, 2002 Policy    from dual
      union all
      select 'BIKE' Object, 2002 Policy from dual
      union all
      select 'GARDEN' Object, 2002 Policy from dual
      union all
      select 'MOBILE' Object, 2002 Policy from dual
      union all
      select 'MONEY' Object, 2002 Policy from dual
      union all
      select 'CREDIT' Object, 2002 Policy from dual
select * from Table_1I need to Query the object column of table_1 for CAR or HOUSE and if they are present then returns 'Y' otherwise 'N'. This table_1 will link to table_2 via Policy and the result will be table_3
with Table_2
as
      select '21' AGE, 2000 Policy from dual
      union all
      select '22' AGE, 2001 Policy from dual
      union all
      select '27' AGE, 2002 Policy from dual
select * from Table_2
with Table_3
as
      select '21' AGE, 2000 Policy, 'Y' Many_Obj    from dual
      union all
      select '22' AGE, 2001 Policy, 'Y' Many_Obj from dual
      union all
      select '27' AGE, 2002 Policy, 'N' Many_Obj from dual
select * from Table_3Thanks in advance
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Thanks for the insert statements.
Here is one way
with Table_1
as
      select 'CAR' Object, 2000 Policy    from dual
      union all
      select 'BIKE' Object, 2000 Policy from dual
      union all
      select 'HOUSE' Object, 2000 Policy from dual
      union all
      select 'MOBILE' Object, 2000 Policy from dual
      union all
      select 'MONEY' Object, 2000 Policy from dual
      union all
      select 'CREDIT' Object, 2000 Policy from dual
      union all
      select 'SCOOTER' Object, 2001 Policy    from dual
      union all
      select 'BIKE' Object, 2001 Policy from dual
      union all
      select 'BEACH' Object, 2001 Policy from dual
      union all
      select 'HOUSE' Object, 2001 Policy from dual
      union all
      select 'MONEY' Object, 2001 Policy from dual
      union all
      select 'CREDIT' Object, 2001 Policy from dual
      union all
      select 'DOOR' Object, 2002 Policy    from dual
      union all
      select 'BIKE' Object, 2002 Policy from dual
      union all
      select 'GARDEN' Object, 2002 Policy from dual
      union all
      select 'MOBILE' Object, 2002 Policy from dual
      union all
      select 'MONEY' Object, 2002 Policy from dual
      union all
      select 'CREDIT' Object, 2002 Policy from dual
Table_2
as
      select '21' AGE, 2000 Policy from dual
      union all
      select '22' AGE, 2001 Policy from dual
      union all
      select '27' AGE, 2002 Policy from dual
SELECT
     age,
     policy,
     Many_Obj
from
SELECT
     t2.age,
     t2.policy,
     CASE
          WHEN SUM(
                    CASE
                         WHEN t1.object IN ('CAR','HOUSE')
                         THEN 1
                         ELSE 0
                    END) over( PARTITION BY t2.age,t2.policy) > 0
          THEN 'Y'
          ELSE 'N'
     END Many_Obj,
     row_number() over (PARTITION BY t2.age,t2.policy order by 1) rn
FROM
     Table_1 t1,
     Table_2 t2
WHERE
     t1.policy = t2.policy
where rn = 1;
AGE POLICY                 MANY_OBJ
21 2000                   Y
22 2001                   Y
27 2002                   N        I would advise you to spend some time learning analytic questions and using CASE expressions.

UPDATE statement based on query and return multiple value

Hi everybody,
I have two tables: temp3 and temp
One of them (temp3) should be updated based on the query where clause (id and flag columns).
I run this query but it updates all of the records in the temp3. I want to update only records with 'UPDATED' flag.
update temp3 t3
set (id,name,address) = (select t.id, t.name, t.address from temp t, temp3 t3
where t.id = t3.id and t.flag = 'UPDATED');
Does any body know how I can do it?
I appreciate your help
Thx

Hello
Basically you're missing a where clause on your update statement to restrict rows in t3 to the ones that have a corresponding row in t1.
SQL> select * from dt_test_t1;
        ID NAME                 ADDRESS              ROW_STATUS
         1 Joseph Bloggs        Some street          UPDATED
         1 Joe Bloggs           Old street           OLD
         2 Fredrick Bloggs      New street           UPDATED
         2 Fred Bloggs          Some street          OLD
         3 Robert Bloggs        Better street        UPDATED
         3 Bob Bloggs           Some street          OLD
       100 Barry Bethel         Some street          UPDATED
       200 Giles Brandreth      Some street          UPDATED
8 rows selected.
SQL> select * from dt_test_t3;
        ID NAME                 ADDRESS              ROW_STATUS
         1 Joe Bloggs           Old street
         2 Fred Bloggs          Some street
         3 Bob Bloggs           Some street
         4 Joe Smith            Some street
         5 John Doe             Some street
--this update as it stands does not work as it updates rows to have
--null name and address where there is not a proper matching row in
--t1
SQL> UPDATE
2     dt_test_t3 t3
3 SET
4     (       t3.name,
5             t3.address,
6             t3.row_status
7     ) = (SELECT
8             t1.name,
9             t1.address,
10             t1.row_status
11          FROM
12             dt_test_t1 t1
13          WHERE
14             t1.id = t3.id
15          AND
16             t1.row_status = 'UPDATED'
17         );
5 rows updated.
SQL> select * from dt_test_t3;
        ID NAME                 ADDRESS              ROW_STATUS
         1 Joseph Bloggs        Some street          UPDATED
         2 Fredrick Bloggs      New street           UPDATED
         3 Robert Bloggs        Better street        UPDATED
4
5
SQL> rollback;
Rollback complete.
--Now add in the where clause to make sure we're only updating rows in
--t3 that have a corresponding row in t1:
SQL> UPDATE
2     dt_test_t3 t3
3 SET
4     (       t3.name,
5             t3.address,
6             t3.row_status
7     ) = (SELECT
8             t1.name,
9             t1.address,
10             t1.row_status
11          FROM
12             dt_test_t1 t1
13          WHERE
14             t1.id = t3.id
15          AND
16             t1.row_status = 'UPDATED'
17         )
18 WHERE
19     EXISTS( SELECT
20                     NULL
21             FROM
22                     dt_test_t1 t1
23             WHERE
24                     t1.id = t3.id
25             AND
26                     t1.row_status = 'UPDATED'
27             );
3 rows updated.
SQL> select * from dt_test_t3;
        ID NAME                 ADDRESS              ROW_STATUS
         1 Joseph Bloggs        Some street          UPDATED
         2 Fredrick Bloggs      New street           UPDATED
         3 Robert Bloggs        Better street        UPDATED
         4 Joe Smith            Some street
         5 John Doe             Some streetHTH
David

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