Check if a string contains "text" in a box, and only if it does not, add it to the chain.

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• check if a string contains only some characters

  I'm working on a java program that converts the Roman numbers. The user enters a string, and I need to check to make sure that it contains MDCLXVI and if he doesn't I will get them the input again string. I thought I'd do a while loop but I'm not sure if it's the smart way to make or the syntax to perform the check.
  
  Here was a thought on the control with a while loop, but I've never used it before and maybe build evil.

  while (!Pattern.matches("MDCLXVI", firstRoman))
          {
          System.out.print("Not a valid Roman Number please try again");
          firstRoman = firstRoman.toUpperCase();
          }

  My Code is as follows:
  

  // Ask for user to input firstRoman Number
          System.out.print("Enter your first Roman Number:");
          // add the Roman Number to the String variable
          firstRoman = keyboard.nextLine();
          firstRoman = firstRoman.toUpperCase();

  Once they enter in the it, I want to check to make sure that it has characters MDCLXVI and if it contains any other characters then I will provide a new object Scanner keyboard to try again and if it fails again, it will go to the option to try again until they put in a string that contains only the characters above. I don't know where to go here to get the while loop has worked. New to Java and I got my program work properly when I put good known numbers of novel, but I want to take incorrect entries.
  
  Any help would be appreciated.
  
  Thank you
  Wally
  
  I put the code for my main program and my class below just in case. I have already met the requirements of the teacher if the project is done, I'm just trying to improve.
  

  /*
   * To change this template, choose Tools | Templates
   * and open the template in the editor.
   */
  package myname.project.pkg6;
  
  import java.util.Scanner;
  import java.util.regex.Pattern;
  
  /**
   *
   * @author wsteadma
   */
  public class mynameProject6 {
  
      /**
       * @param args the command line arguments
       */
      public static void main(String[] args) {
          
          // Used for testing
          String firstRoman;
          String secondRoman;
          
          
          Scanner keyboard = new Scanner(System.in);
  
          
          // Ask for user to input firstRoman Number
          System.out.print("Enter your first Roman Number:");
          // add the Roman Number to the String variable
          firstRoman = keyboard.nextLine();
          firstRoman = firstRoman.toUpperCase();
          
                
          // Ask for user to input secondRoman Number
          System.out.print("Enter your second Roman Number:");
          // add the Roman Number to the String variable
          secondRoman = keyboard.nextLine(); // Add the name input into the name variable
          secondRoman = secondRoman.toUpperCase();
          
          
          //Creating first instance of Roman Numbers class
          Roman firstNumber = new Roman(firstRoman);
          Roman secondNumber = new Roman(secondRoman);
          
          System.out.println("Printout of the created roman numbers");
          //Prints out the Roman Number
          firstNumber.printRoman();
          secondNumber.printRoman();
          
          
          // Convert Roman to Decimal
          firstNumber.setDecimal(firstRoman);
          secondNumber.setDecimal(secondRoman);
          
          System.out.println("Viewing the Decimal values for the two defined instances");
          //Prints decimal Numbers
          firstNumber.printDecimal();  
          secondNumber.printDecimal();
          
          System.out.println("Adding the Roman Numbers and returning new Roman value");
          Roman romanAdd;
          romanAdd = firstNumber.addRoman(secondNumber);
          romanAdd.printRoman();
  
          System.out.println("Subtracting the Roman Numbers and return new Roman value");
          Roman romanSub;
          romanSub = firstNumber.subRoman(secondNumber);
          romanSub.printRoman();
      }
  }

  CLASS:

  /*
   * To change this template, choose Tools | Templates
   * and open the template in the editor.
   */
  package myname.project.pkg6;
  
  /**
   *
   * @author wsteadma
   */
  public class Roman {
  
      private String romNumber;
      private int decNumber;
  
      public Roman(String rNumber) {
          romNumber = rNumber;
      }
  
      public String getRoman() {
          return romNumber;
      }
      
      public int getDecimal()
      {
      return decNumber;
      }
  
      public void printRoman() {
          System.out.println("The Roman Number is " + romNumber);
      }
  
      public void printDecimal() {
          System.out.println("The Decimal Number is " + decNumber);
      }
  
      // Converts a roman number string into a decimal value
      public int setDecimal(String romNum) {
          int charValue = 0;
          char[] characters = new char[romNum.length()];
  
          //System.out.println("romNum length is " + romNum.length());
          for (int counter = 0; counter < romNum.length(); counter++) {
              characters[counter] = romNum.charAt(counter);
              //System.out.println(characters[counter]);
          }
  
          for (int sCounter = 0; sCounter < romNum.length(); sCounter++) {
              if (characters[sCounter] == 'M'  || characters[sCounter] == 'm') {
                  charValue += 1000;
              } else if (characters[sCounter] == 'D' || characters[sCounter] == 'd') {
                  charValue += 500;
              } else if (characters[sCounter] == 'C' || characters[sCounter] == 'c') {
                  charValue += 100;
              } else if (characters[sCounter] == 'L' || characters[sCounter] == 'l') {
                  charValue += 50;
              } else if (characters[sCounter] == 'X' || characters[sCounter] == 'x') {
                  charValue += 10;
              } else if (characters[sCounter] == 'V' || characters[sCounter] == 'v') {
                  charValue += 5;
              } else if (characters[sCounter] == 'I' || characters[sCounter] == 'i') {
                  charValue += 1;
              }
          
          }
          decNumber = charValue;
          return charValue;
      }
  
      // Converts a decomal number to a roman number
      public String setDec2Roman(int decNum) {
          String newRoman = "";
  
          while (decNum >= 1000) {
              newRoman += "M";
              decNum -= 1000;
              //System.out.println(decNum);
              //System.out.println(newRoman);
          }
  
          while (decNum >= 500) {
              newRoman += "D";
              decNum -= 500;
              //System.out.println(decNum);
              //System.out.println(newRoman);
          }
  
          while (decNum >= 100) {
              newRoman += "C";
              decNum -= 100;
              //System.out.println(decNum);
              //System.out.println(newRoman);
          }
  
          while (decNum >= 50) {
              newRoman += "L";
              decNum -= 50;
              //System.out.println(decNum);
              //System.out.println(newRoman);
          }
  
          while (decNum >= 10) {
              newRoman += "X";
              decNum -= 10;
              //System.out.println(decNum);
              //System.out.println(newRoman);
          }
  
          while (decNum >= 5) {
              newRoman += "V";
              decNum -= 5;
              //System.out.println(decNum);
              //System.out.println(newRoman);
          }
  
          while (decNum > 0) {
              newRoman += "I";
              decNum -= 1;
              //System.out.println(decNum);
              //System.out.println(newRoman);
          }
          return newRoman;
      }
  
      public Roman addRoman(Roman newRom) {
          int totRom = newRom.setDecimal(newRom.romNumber) + decNumber;
          romNumber = newRom.setDec2Roman(totRom);
          return new Roman(romNumber);
      }
      
      public Roman subRoman(Roman subRom) {
          int totRom = decNumber - subRom.setDecimal(subRom.romNumber);
          romNumber = subRom.setDec2Roman(totRom);
          return new Roman(romNumber);
      }
      
  }

  While (!.) Pattern.Matches ("MDCLXVI", firstRoman))

  Try "[MDCLXVI] *" and see if it's better

  {
  System.out.Print ("a valid Roman Number please try again");
  firstRoman = firstRoman.toUpperCase ();
  }

  My Code is as follows:

  // Ask for user to input firstRoman Number
  System.out.print("Enter your first Roman Number:");
  // add the Roman Number to the String variable
  firstRoman = keyboard.nextLine();
  firstRoman = firstRoman.toUpperCase();
  

  Once they enter in the it, I want to check to make sure that it has characters MDCLXVI and if it contains any other characters then I will provide a new object Scanner keyboard to try again and if it fails again, it will go to the option to try again until they put in a string that contains only the characters above. I don't know where to go here to get the while loop has worked. New to Java and I got my program work properly when I put good known numbers of novel, but I want to take incorrect entries.

  Any help would be appreciated.

  Thank you
  Wally

  I put the code for my main program and my class below just in case. I have already met the requirements of the teacher if the project is done, I'm just trying to improve.

  /*
  * To change this template, choose Tools | Templates
  * and open the template in the editor.
  */
  package myname.project.pkg6;
  
  import java.util.Scanner;
  import java.util.regex.Pattern;
  
  /**
  *
  * @author wsteadma
  */
  public class mynameProject6 {
  
  /**
  * @param args the command line arguments
  */
  public static void main(String[] args) {
  
  // Used for testing
  String firstRoman;
  String secondRoman;
  
  Scanner keyboard = new Scanner(System.in);
  
  // Ask for user to input firstRoman Number
  System.out.print("Enter your first Roman Number:");
  // add the Roman Number to the String variable
  firstRoman = keyboard.nextLine();
  firstRoman = firstRoman.toUpperCase();
  
  // Ask for user to input secondRoman Number
  System.out.print("Enter your second Roman Number:");
  // add the Roman Number to the String variable
  secondRoman = keyboard.nextLine(); // Add the name input into the name variable
  secondRoman = secondRoman.toUpperCase();
  
  //Creating first instance of Roman Numbers class
  Roman firstNumber = new Roman(firstRoman);
  Roman secondNumber = new Roman(secondRoman);
  
  System.out.println("Printout of the created roman numbers");
  //Prints out the Roman Number
  firstNumber.printRoman();
  secondNumber.printRoman();
  
  // Convert Roman to Decimal
  firstNumber.setDecimal(firstRoman);
  secondNumber.setDecimal(secondRoman);
  
  System.out.println("Viewing the Decimal values for the two defined instances");
  //Prints decimal Numbers
  firstNumber.printDecimal();
  secondNumber.printDecimal();
  
  System.out.println("Adding the Roman Numbers and returning new Roman value");
  Roman romanAdd;
  romanAdd = firstNumber.addRoman(secondNumber);
  romanAdd.printRoman();
  
  System.out.println("Subtracting the Roman Numbers and return new Roman value");
  Roman romanSub;
  romanSub = firstNumber.subRoman(secondNumber);
  romanSub.printRoman();
  }
  }
  

  CLASS:

  /*
  * To change this template, choose Tools | Templates
  * and open the template in the editor.
  */
  package myname.project.pkg6;
  
  /**
  *
  * @author wsteadma
  */
  public class Roman {
  
  private String romNumber;
  private int decNumber;
  
  public Roman(String rNumber) {
  romNumber = rNumber;
  }
  
  public String getRoman() {
  return romNumber;
  }
  
  public int getDecimal()
  {
  return decNumber;
  }
  
  public void printRoman() {
  System.out.println("The Roman Number is " + romNumber);
  }
  
  public void printDecimal() {
  System.out.println("The Decimal Number is " + decNumber);
  }
  
  // Converts a roman number string into a decimal value
  public int setDecimal(String romNum) {
  int charValue = 0;
  char[] characters = new char[romNum.length()];
  
  //System.out.println("romNum length is " + romNum.length());
  for (int counter = 0; counter < romNum.length(); counter++) {
  characters[counter] = romNum.charAt(counter);
  //System.out.println(characters[counter]);
  }
  
  for (int sCounter = 0; sCounter < romNum.length(); sCounter++) {
  if (characters[sCounter] == 'M'  || characters[sCounter] == 'm') {
  charValue += 1000;
  } else if (characters[sCounter] == 'D' || characters[sCounter] == 'd') {
  charValue += 500;
  } else if (characters[sCounter] == 'C' || characters[sCounter] == 'c') {
  charValue += 100;
  } else if (characters[sCounter] == 'L' || characters[sCounter] == 'l') {
  charValue += 50;
  } else if (characters[sCounter] == 'X' || characters[sCounter] == 'x') {
  charValue += 10;
  } else if (characters[sCounter] == 'V' || characters[sCounter] == 'v') {
  charValue += 5;
  } else if (characters[sCounter] == 'I' || characters[sCounter] == 'i') {
  charValue += 1;
  }
  
  }
  decNumber = charValue;
  return charValue;
  }
  
  // Converts a decomal number to a roman number
  public String setDec2Roman(int decNum) {
  String newRoman = "";
  
  while (decNum >= 1000) {
  newRoman += "M";
  decNum -= 1000;
  //System.out.println(decNum);
  //System.out.println(newRoman);
  }
  
  while (decNum >= 500) {
  newRoman += "D";
  decNum -= 500;
  //System.out.println(decNum);
  //System.out.println(newRoman);
  }
  
  while (decNum >= 100) {
  newRoman += "C";
  decNum -= 100;
  //System.out.println(decNum);
  //System.out.println(newRoman);
  }
  
  while (decNum >= 50) {
  newRoman += "L";
  decNum -= 50;
  //System.out.println(decNum);
  //System.out.println(newRoman);
  }
  
  while (decNum >= 10) {
  newRoman += "X";
  decNum -= 10;
  //System.out.println(decNum);
  //System.out.println(newRoman);
  }
  
  while (decNum >= 5) {
  newRoman += "V";
  decNum -= 5;
  //System.out.println(decNum);
  //System.out.println(newRoman);
  }
  
  while (decNum > 0) {
  newRoman += "I";
  decNum -= 1;
  //System.out.println(decNum);
  //System.out.println(newRoman);
  }
  return newRoman;
  }
  
  public Roman addRoman(Roman newRom) {
  int totRom = newRom.setDecimal(newRom.romNumber) + decNumber;
  romNumber = newRom.setDec2Roman(totRom);
  return new Roman(romNumber);
  }
  
  public Roman subRoman(Roman subRom) {
  int totRom = decNumber - subRom.setDecimal(subRom.romNumber);
  romNumber = subRom.setDec2Roman(totRom);
  return new Roman(romNumber);
  }
  
  }
  

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  prospectus. Page1.Step1.ObjectivesSubform.objectives [curObject-1]. Objective.Caption.Value text.value the Group concat (curObject, ":");

  And that helps my form works very well and the numbers to load fine in the form.  The problem I'm having is that after I save the form and reload, the figures date back to 1 for each text field.  Someone has an idea?

  * To test what I see, go to 'Objectives' and click Add target to create at least 2 additional text fields (so that you have at least 3 overall).  Save the form, and note that the numbers went from 1,2,3 to 1,1,3-triethoxyheptane.  It will be the same if you create any amount.  If you create 5 more it will go 1,1,1,1,5.  I'm puzzled.

  I think that it is related to the initialization of the form sub and how instance manager interprets the subshape County. The "count" on the instanceManager property is the current number of instances of the secondary form. When you add instances of the form in increments of 'count' and she is exposed as a sequential number incremented. However, after economy-close-open the form, the County is irrelevant until you add another instance.

  Try the 'instanceIndex' property and assigning the legend as follows:

  prospectus. Page1.Step1.ObjectivesSubform.objectives.objective::Initialize - (JavaScript, client)

  var CNT = Objectives.instanceIndex + 1;
  xfa.resolveNode("Objectives.Objective.caption.value.#text").value = cnt + ":";

  Steve

  PLEASE NOTE ON THIS FORM, I HAVE NOT HAD A CHANCE TO WATCH, THERE ARE PROBLEMS.

• Corresponding to the string of text with a keyword and check whether it exists or not

  We have this DESCRIPTION column, and the data inside it are:

  Mr. Redmond Bred is to have a red balloon. His tie is also red.

  Now, when you use it AS operator with the keyword 'red', he finds a match in these 3 words: Redmond, Bred and red.

  But in my case, the match should happen with the word "red" only. Is this possible?

  Yes, it is possible, for example by using regular expressions.

  Also please note that your first assumption is wrong. The like operator won't find Redmond.

  Example of

  select *
  from dual
  where regexp_like('Redmond''s Bred is having a red balloon. His tie is also red.','(^|\s)red(\s|$)');
  

  Post edited by: SvenW. : added example

• AF:table value of text entry box does not get stored in the database.

  Hello
  I use af:table in my jsff page. The table contains the column of text entry box. After clicking the Create (+) button, a line has been added to the table. I got value into the text entry field and click the 'OK' button to commit the transaction. When I check the database, the entered value is not stored in the database. What I've observed, it's that if I have more than 1 table in the af: table and after entering the value into the text entry field, if I tab out and control moves to the next line, and then click the OK"" button. This time, the value you entered get stored in the database. It's look like, the value of current row is not updated until the action tab. Please help me solve this problem.
  
  JDeveloper version: 11.1.1.6
  
  Kind regards
  Suresh

  Hello

  What is the business service associated to this? Also the OK button have no immediate = true set

  Frank