NEED HELP!! creating a method to search records from a data.dat file

i am having a lot of trouble trying to create a method for searching records from a data.dat file as a contacts application i am using (for) and (if) together and getting the same error messages saying a ")" is needed when it doesn't and illegal start of expression can anyone help! on letting me know how you create search methods! thanks

public static void search_records()
          System.out.println("Please Enter a Surname (* for all):");
          user_surname = data_input.next();
          System.out.println("Please Enter a firstname (* for all):");
          user_firstname = data_input.next();
          for (int i = 0; i < number_of_records; i++)
               if(user_surname.compareTo(lastName) || user_surname.compareTo(*));
                         if(user_firstname.compareTo(firstName[i]) || user_firstname.compareTo(*));
                              system.out.print("Result:",number_of_records);

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Halo, ...Yeah, Halo! Love that game...
Um, use getDate(). ResultSet.getDate() is not deprecated. If you think so, then you better go reread the API docs, cuz you're reading the wrong ones.

I need help creating a method!

Hi,
I'm following a Java course, we have a homework to do and I have some problems with it... We have to create a table (int [] a) with a 100 elements ( 0,2,4,6 ... to 198 - all even) we have to go through a "for" to fill the table (I have no problem with that) but the thing is that we have to create a JOptionPane asking a value and our method has to find that value in the table and give the position of that value. And if the value is not even a JOptionPane has to respond "that value is not in the table". I'll give yall an example:
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here is what I have done so far (some of the text is in french):
import javax.swing.*;
import java.awt.*;
public class TP3a extends JApplet{
     JTextArea zone = new JTextArea ();
     String sortie= " ";
     String cle1;
     int indice=0;
     int cle;
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               for (int x; x<=tableau.length; x++){
                    if (cle == tableau [x])
                         return tableau [cle];
                         else
                         continue;
Please help me!!!
Thanks,
Neriade

import javax.swing.*;
import java.awt.*;
public class TP3a extends JApplet{
      JTextArea zone = new JTextArea ();
      String sortie= " ";
      String cle1;
      int indice=0;
      int cle;
      int [] tableau = new int [100];
      public void init (){
      for (int x=0, y = 0; x<100; x++, y += 2 ){
         tableau[x]= y;
         indice=x;
      cle1=JOptionPane.showInputDialog ("Entrer la valeur de l'element que vous desirez voir: ");
      cle=Integer.parseInt (cle1);
      int i = rechercheIndice (tableau, cle);
      System.out.println( "i: " + i );
      sortie+=tableau [cle];
      zone.append (sortie);
      JOptionPane.showMessageDialog (null, zone, "Tableau", JOptionPane.PLAIN_MESSAGE);
      System.exit (0);
      public int rechercheIndice (int[] tableau, int cle){
      for (int x = 0; x<tableau.length; x++){
         if (cle == tableau [x])
            return x;//tableau [cle];
      return -1;
}

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Hi all,
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As a leader in the market, Oracle 's the only DBMS that could support this size of data, but what's the limit of Oracle in this case? can Oracle support and manage perfectly daily 40 millions of records and for many years, ie We need all data of this table, we can't consider after a period that we don't need history: we need to save all data and without purge the history and this for many years i suppose!!! you can imagine 40 daily millions of records and for many years!!!
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2-Study the performance ; which solutions, technics could I use to improve the performance of :
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- Daily Consolidate / managing different views/ materalized view from this big table?
3- What is required in terms of hardware? features / Technologies( maybe clusters...)
Hope that experts help me and advice me! thank you very much for your atention :)

1-Can Oracle support and perfectly manage daily 40 millions of records and for many years?Yes
2-Study the performance ; which solutions, technics could I use to improve >>>the performance of :Send me your email, and I can send you a Performance tuning metodology pdf.
You can see my email on my profile.
Daily Loading 40 millions of records from csv or xml file/files?DIrect Load
- Daily Consolidate / managing different views/ materalized view from this big table?You can use table partitions, one partition for each day.
Regards,
Francisco Munoz Alvarez

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Need help with calling method

I'm new to Java, trying to pass a required class so I can graduate this semester, and I need help figuring out what is wrong with the code below. My assignment is to create a program to convert celsius to fahrenheit and vice versa using Scanner for input. The program must contain 3 methods - main, convert F to C, method, and convert C to F method. Requirements of the conversion methods are one parameter which is an int representing temp, return an int representing calculated temp after doing appropriate calculation, should not display info to user, and should not take in info from user.
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cannot find symbol
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symbol : method celsiusToFarenheit(int)
location: class WondaPavoneTempConverter
int farenheit = celsiusToFarenheit(intTemp);
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public static void main(String[] args) {
// Create a scanner
Scanner scanner = new Scanner(System.in);
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int intTemp = scanner.nextInt();
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// Prompt the user to enter "1" to convert to Celsius, "2" to convert to
// Farenheit, or "3" to exit the program
System.out.println("Enter 1 to convert to Celsius, 2 to convert to Farenheit, or 3 to exit.");
int intConvert = scanner.nextInt();
// Convert temperature to Celsius or Farenheit
int celsius = farenheitToCelsius(intTemp);
int farenheit = celsiusToFarenheit(intTemp);
while (intConvert >= 0) {
// Convert to Celsius
if (intConvert == 1) {
System.out.println("Celsius is " + celsius + " degrees.");
// Convert to Farenheit
else if (intConvert == 2) {
System.out.println("Farenheit is " + farenheit + " degrees.");
// Exit program
else if (intConvert == 3) {
break;
else {
System.out.println("The number you entered is invalid. Please enter 1, 2, or 3.");
//Method to convert Celsius to Farenheit
public static int celsiusToFahrenheit(int cTemp) {
return (9 / 5) * (cTemp + 32);
//Method to convert Farenheit to Celsius
public static int fahrenheitToCelsius(int fTemp) {
return (5 / 9) * (fTemp - 32);
I readily admit I'm a complete dunce when it comes to programming - digital media is my area of expertise. Can anyone point me in the right direction? This assignment is due very soon. Thanks.

1) consider using a boolean variable in the while statement and converting it to true if the input is good.
while (inputNotValid)
}2) put the code to get the input within the while loop. Try your code right now and enter the number 30 when your menu requests for input and you'll see the infinite loop.... and why you need to request input within the loop.
3) Fix your equations. You are gonig to have to do some double calcs, even if you convert it back to int for the method return. Otherwise the results are just plain wrong. As a good test, put in the numbers -40, 0, 32, 100, and 212. Are the results as expected? (-40 is the only temp that is the same for both cent and fahr). I recommend doing double calcs and then casting the result to int in the return. for example:
int a = (int) (20 + 42.0 / 3); // the 42.0 forces the compiler to do double calc.4) One of your equations may still be plain wrong even with this fix. Again, run the test numbers and see.
5) Also, when posting your code, please use code tags so that your code will be well-formatted and readable. To do this, either use the "code" button at the top of the forum Message editor or place the tag [code] at the top of your block of code and the tag [/code] at the bottom, like so:
[code]
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is it really just one IDOC?
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E1KNA1M
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E1KNVPM
E1KNVDM
E1KNVIM
--E1KNB1M
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E1KNA1M
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E1KNVPM
E1KNVDM
E1KNVIM
--E1KNVVM
E1KNVPM
E1KNVDM
E1KNVIM
--E1KNB1M
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Need help on case statements to validate records

Hi Experts ,
My table :
seq_num
col2
col3
col4
1
A
12345
P
2
B
1
123%23
3
C
1
23AB
4
D
1
20131001
5
E
1
6
A
13245
Q
7
B
1
12345
8
C
2
1234*AB
9
D
5
20140112
10
E
1
00020
my output
seq_num
col2
col3
col4
Status
Reason
1
A
12345
P
Valid
2
B
1
123%23
invalid
Special Character for col4
3
C
1
23AB
Valid
4
D
1
20131001
Valid
5
E
1
invalid
null for col4
6
A
13245
Q
invalid
Invalid character col4 || invalid number for col3
7
B
1
12345
Valid
8
C
2
1234*AB
Invalid
Special Character col4 ||invalid col3
9
D
5
20140112
invalid
Future dates col4 ||invalid col3
10
E
1
00020
Valid
Sql :
with t as
( select 1 as seq_num,'A' as col2 ,12345 as col3 ,'P' as col4 from dual
union all
select 2 ,'B',1,'123%23' from dual
union all
select 3,'C',1,'23AB' from dual
union all
select 4,'D',1,'21-02-2013' from dual
union all
select 5,'E',1,null from dual
union all
select 6,'A,13245,'Q' from dual
union all
select 7,'B',1,12345 from dual
union all
select 8,'C',2,'1234*AB' from dual
union all
select 9,'D',5,'25-01-2014' from dual
union all
select 10,'E',1,20 from dual
I am applying rules on col3 and col4 for each records row-wise.
I need case statements to populate status and reason columns after applying below rules
Rules
Col3 :
For A record ,it should be 12345 always .
For B,C,D,E , record should be always 1
col4
For A record , it should be either P or R
No null values for all A, B,C,D,E records
for B record , it dont contain special charecters
for C RECORD , it dont contain special charecters
for D record ,it should not contain future dates (dates are in yyyymmdd format and less than sysdates are valid )
I have other columns as well ,as i not included here
.It would be great if you Could help on case statements
Thanks and Regards,
Sumanth

I've adjusted Gregs nice example a bit. This should work:
with w_base as (
      select seq_num, col2, col3, col4,
             case when (col2 = 'A'                 AND col3 = 12345 )
                    OR (col2 in ('B','C','D','E') AND col3 = 1)
                        then '' else '||invalid col3' end ||
             case when (col2 = 'A'        AND col4 not IN ( 'P', 'R' ) )
                        then '||invalid col4' else '' end ||
             case when (col2 IN ( 'B', 'C' )   AND col4 != translate(col4, 'a!@#$%^*()','a') )
                        then '||special character for col4' else '' end ||
             case when (col2 = 'D'        AND col4 >= to_char(sysdate,'yyyymmdd') )
                        then '||future dates col4' else '' end
               reason
      from ( select 1 as seq_num, 'A' as col2, 12345 as col3, 'P' as col4 from dual union all
             select 2,            'B',         1,             '123%23'     from dual union all
             select 3,            'C',         1,             '23AB'       from dual union all
             select 4,            'D',         1,             '20130212'   from dual union all
             select 5,            'E',         1,             null         from dual union all
             select 6,            'A',         13245,         'Q'          from dual union all
             select 7,            'B',         1,             '12345'      from dual union all
             select 8,            'C',         2,             '1234*AB'    from dual union all
             select 9,            'D',         5,             '20140125'   from dual union all
             select 10,           'E',         1,             '20'         from dual )
Select seq_num, col2, col3, col4,
       case when reason is null then 'Valid' else 'Invalid' end status,
       substr(reason, 3 ) reason
from w_base
It returns
SEQ_NUM
COL2
COL3
COL4
STATUS
REASON
1
A
12345
P
Valid
2
B
1
123%23
Invalid
special character for col4
3
C
1
23AB
Valid
4
D
1
20130212
Valid
5
E
1
Valid
6
A
13245
Q
Invalid
invalid col3||invalid col4
7
B
1
12345
Valid
8
C
2
1234*AB
Invalid
invalid col3||special character for col4
9
D
5
20140125
Invalid
invalid col3||future dates col4
10
E
1
20
Valid
edited some bugs :) now it should be fine! really

NEED HELP!! creating a method to search records from a data.dat file

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