How to search char in a string

hi, i am new to JSP.
i have a string, for example an address "Frauenstrasse 10", i want to split it into street name "Frauenstrasse" and house number "10". but i don't know the syntax to process String. can anyone help? thanks!

new StringTokenizer(myString," "); // Tokens just space
or
new StringTokenizer(myString); // Tokens white space
token.hasMoreTokens(); - boolean
token.nextToken(); - Returns String
Stick in While loop.

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At line:1 char:20
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At line:1 char:1
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Why not catch a specific error type?
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How to search for particular string in array?

I am struggling to figure out how to search array contents for a string and then delete the entry from the array if it is found.
The code for a program that allows the user to enter up to 20 inventory items (tools) is posted below; I apologize in advance for it as I am also not having much success grasping the concept of OOP and I am certain it is does not conform although it all compiles.
Anyway, if you can provide some assistance as to how to go about searching the array I would be most grateful. Many thanks in advance..
// ==========================================================
// Tool class
// Reads user input from keyboard and writes to text file a list of entered
// inventory items (tools)
// ==========================================================
import java.io.*;
import java.text.DecimalFormat;
public class Tool
private String name;
private double totalCost;
int units;
// int record;
   double price;
// Constructor for Tool
public Tool(String toolName, int unitQty, double costPrice)
      name = toolName;
      units = unitQty;
      price = costPrice;
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      String input;
      String item;
      String addItem;
      int choice = 0;
      int recordNum = 1;
      int qty;
      double price;
      boolean valid;
      String toolName = "";
      String itemQty = "";
      String itemCost = "";
      DecimalFormat fmt = new DecimalFormat("##0.00");
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      System.out.println();
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      System.out.println("==================================================");
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            System.out.println();
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            System.out.print(" Enter an option > ");
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         FileWriter fileName = new FileWriter(file);
         BufferedWriter bufferedWriter = new BufferedWriter(fileName);
         PrintWriter dataFile = new PrintWriter(bufferedWriter);
         do
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                     itemQty = stdin.readLine();
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                     qty = Integer.parseInt (itemQty);
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                     dataFile.print(itemQty + "\t");
                     valid=true;
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                     // Throw error for all non-integer input
                     System.out.println();
                     System.out.println(" Only whole numbers please. Try again.");
               while (!valid);
               do
                  valid = false;
                  try
                     // Prompt for item cost
                     System.out.print(" Enter item #" + recordNum + " cost (A$) > ");
                     itemCost = stdin.readLine();
                     // Parse float as string
                     price = Double.parseDouble(itemCost);
                     // Write item cost to data file
                     dataFile.println(fmt.format(price));
                     valid = true;
                  catch(NumberFormatException exception)
                     // Throw error for all non-number input (integers
                  // allowed)
                     System.out.println();
                     System.out.println(" Only numbers please. Try again.");
               while (!valid);
               // Prompt to add another item
               System.out.println();
               System.out.print(" Add another item? Y/N > ");
               addItem = stdin.readLine();
               while ((!addItem.equalsIgnoreCase("Y")) && (!addItem.equalsIgnoreCase("N")))
                  // Prompt for valid input if not Y or N
                  System.out.println();
                  System.out.println(" Not a valid option. Try again.");
                  System.out.print(" Add another item? Y/N > ");
                  addItem = stdin.readLine();
                  System.out.println();
               // Increment record number by 1
               recordNum++;
               if (addItem.equalsIgnoreCase("N"))
                  System.out.println();
                  System.out.println(" The output file \"" + file + "\" has been saved.");
                  System.out.println();
                  System.out.println(" Quitting program.");
        while (addItem.equalsIgnoreCase("Y"));
// Close input file
dataFile.close();
   if (choice == 2)
   try {
      Read user input (array search string)
      Search array
      If match found, remove entry from array
      Confirm "deletion" and display new array contents
   catch block {
} // class
// ==========================================================
// ListToolDetails class
// Reads a text file into an array and displays contents as an inventory list
// ==========================================================
import java.io.*;
import java.util.StringTokenizer;
import java.text.DecimalFormat;
public class ListToolDetails {
   // Declare variable
   private Tool[] toolArray; // Reference to an array of objects of type Tool
   private int toolCount;
   public static void main(String args[]) throws Exception {
      String line, name, file = "test.txt";
      int units, count = 0, record = 1;
      double price, total = 0;
      DecimalFormat fmt = new DecimalFormat("##0.00");
      final int MAX = 20;
      Tool[] items = new Tool[MAX];
      System.out.println("Inventory List");
      System.out.println();
      System.out.println("REC.#" + "\t" + "ITEM" + "\t" + "QTY" + "\t"
            + "PRICE" + "\t" + "TOTAL");
      System.out.println("\t" + "\t" + "\t" + "\t" + "PRICE");
      System.out.println();
      try {
         // Read a tab-delimited text file of inventory items
         FileReader fr = new FileReader(file);
         BufferedReader inFile = new BufferedReader(fr);
         StringTokenizer tokenizer;
         while ((line = inFile.readLine()) != null) {
            tokenizer = new StringTokenizer(line, "\t");
            name = tokenizer.nextToken();
            try {
               units = Integer.parseInt(tokenizer.nextToken());
               price = Double.parseDouble(tokenizer.nextToken());
               items[count++] = new Tool(name, units, price);
               total = units * price;
            } catch (NumberFormatException exception) {
               System.out.println("Error in input. Line ignored:");
               System.out.println(line);
            System.out.print(" " + count + "\t");
            System.out.print(line + "\t");
            System.out.print(fmt.format(total));
            System.out.println();
         inFile.close();
      } catch (FileNotFoundException exception) {
         System.out.println("The file " + file + " was not found.");
      } catch (IOException exception) {
         System.out.println(exception);
      System.out.println();
   // Unfinished functionality for displaying "error" message if user tries to
   // add more than 20 tools to inventory
   public void addTool(Tool maxtools) {
      if (toolCount < toolArray.length) {
         toolArray[toolCount] = maxtools;
         toolCount += 1;
      } else {
         System.out.print("Inventory is full. Cannot add new tools.");
   // This should search inventory by string and remove/overwrite matching
   // entry with null
   public Tool getTool(int index) {
      if (index < toolCount) {
         return toolArray[index];
      } else {
         System.out
               .println("That tool does not exist at this index location.");
         return null;
} // classData file contents:
TOOL 1     1     1.21
TOOL 2     8     3.85
TOOL 3     35     6.92

Ok, so you have an array of Strings. And if the string you are searching for is in the array, you need to remove it from the array.
Is that right?
Can you use an ArrayList<String> instead of a String[ ]?
To find it, you would just do:
for (String item : myArray){
   if (item.equals(searchString){
      // remove the element. Not trivial for arrays, very easy for ArrayList
}Heck, with an arraylist you might be able to do the following:
arrayList.remove(arrayList.indexOf(searchString));[edit]
the above assumes you are using 1.5
uses generics and for each loop
[edit2]
and kinda won't work it you have to use an array since you will need the array index to be able to remove it. See the previous post for that, then set the value in that array index to null.
Message was edited by:
BaltimoreJohn

How to search for a particular word in a string?

How to search for a particular word in a string?
thanks for your help....

This works fine.
public class Foo {
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true
falseYou must have something else wrong in your code.
JJ

How to search char in a string

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