Thread: help fix this code

how do i get the inputed strings to print out after i turn them into tokens ? I need it to ask for a number and then multiple lines of strings, turn them into tokens, then print them out.

 
import java.util.*;
public class TokenDriver{
  public static void main(String [] args){
 
   // TokenStore words = new TokenStore();
    String[] tokens = new String[300];
 
    Scanner scan = new Scanner(System.in);
    Scanner scan2 = new Scanner(System.in);
    System.out.println("enter number of words to display per line");
    int num = scan.nextInt();
    System.out.println(num);
    //scan.nextLine();
   System.out.println("Enter lines of text, type two returns in a row to end");
   String t = " ";
   int pos = 0;
    String[] store = new String[300];        
  while(t.length() > 0)
  {
    t = scan2.nextLine();
    store[pos] = t;
    pos++;
  }
 StringTokenizer str = new StringTokenizer(t);  
  while(str.hasMoreTokens())
  {
    String token = str.nextToken();
    System.out.println(token);
  }

--- Update ---

also as a follow up how would use an array in an other class (TokenStore) to save the typed line information

how do i get the inputed strings to print out

Use: System.out.println(THESTRINGHERE);

What is wrong with what the code does now? It is using the above mentioned method to print tokens.

Can you explain what the program is supposed to do?

right now the code asks for a line then prints the tokens, but i need it to ask for multiple lines of strings, turn them into tokens then print the tokens

the program wants me input a number (lets say k) and lines of text. then print the lines of text but with k tokens in each line. it says to turn the line of texts into tokens and store the tokens into an array to store the tokens


this is what i have for the TokenStore class but I'm pretty sure i am doing it completely wrong so I might have to start over

 
import java.util.*;
 
 
public class TokenStore{
 
 
 
  final int lastWord = 300;
 private int lastEmpty = 0;
 private String[] lines = new String[lastWord];
 private String word;
 int targetLine;
 
public TokenStore( String w){
  word = w;
  int count = 1;
 
 }
 
 
   public void addWord( String w) {
     if ((lastEmpty + 1) == lastWord)
       System.out.println( "word full" + w + "not add");
     else{
       lines[lastEmpty] = new String(w);
       lastEmpty++;
     }
   }
 
   public void updateWords( String w){
     if( lines.length>0)
     addWord(w);
   }
 
 
   public void wordReport(){
     for( int i = 0; i<lastEmpty; i++)
       System.out.println(lines[i]);
   }
 
   public void nextEmpty(){
 
 
   }
 
   public void breakToTokens(){
     StringTokenizer str = new StringTokenizer(lines[lastWord]);
     while(str.hasMoreTokens()){
       addWord(lines[lastWord]);
     }
   }
 
 
}

i need it to ask for multiple lines of strings, turn them into tokens then print the tokens

Which part are you having problems with?
ask for multiple lines of strings
{I assume the code will read those strings}
turn them into tokens
{What happens to the tokens? Saved or printed immediately?}
print the tokens

Suggestion: Work on one step at a time. Design it, code it and test it before moving to the next step.

storing the tokens from TokenDriver in an array in the other class Token Store

Add a method to the TokenStore class that stores the tokens in the array. Call that method with the token to be stored from the TokenDriver class.

How would I make it ask for multiple lines of text

There are several ways all involving loops:
1) get the number of lines from the user and loop that number of times
2) have a "sentinel" value that the user enters to tell the program that there is no more input

prints them in tokens?

Use a loop to print the saved tokens.

I am trying to get my code to to print out a certain number of tokens in a line then make a new line. The number is determined by a number entered to the console. How do I get it to do this. I have most of it done and know i need to have if((i%num) == 0) System.out.println();
this is how it should run.

enter number of words to display per line
> 3
Enter lines of text, type two returns in a row to end
>
hello, how are you
I am doing well
what is the time today
(empty line)

(this is what it should print with 3 tokens in each line)
hello, how are
you I am
doing well what
is the time
today

but my code just prints this:
hello, how are you I am doing well what is the time today

import java.util.*;
 
 public class TokenStore2{
 
  final int lastEmpty = 300;
  private String[] lines = new String[lastEmpty];
 private int index = 0;
 
 
 String s;
 int count = 0;
 
  public void makeToken( String line,int num)
  {
      if(index + 1 == lastEmpty)
        System.out.println("full");
        else
        {
 
    StringTokenizer str = new StringTokenizer(line);
       while(str.hasMoreTokens())
       {
         s = str.nextToken();
       lines[index] = new String(s);
       index++;
      count++;
       }
      }
     }
 
  public void printTokens(int num)
  {
    for(int i =0; i<index;i++)
{
      if (lines[i] != null)
     System.out.print(lines[i] + " ");
}
    else if((i%num)==0)
     {
 System.out.println();
}
  }
 }

import java.util.*;
 
public class TokenDriver2{
  public static void main(String [] args){
 
    tokenStore2 t = new tokenStore2();
    Scanner scan1 = new Scanner(System.in);
    Scanner scan2 = new Scanner(System.in);
    System.out.println("enter number of words to display per line");
    int num = scan1.nextInt();
    System.out.println("Enter lines of text, type two returns in a row to end");
    int pos = 0;
    String s = " ";
    while(s.length() > 0){
      s = scan2.nextLine();
      t.makeToken(s, num);
    }
       t.printTokens(num);
 }
}

Why would lines[i] be null when you're printing out the line?

Please use curly braces around every for loop and if statement body, even if you think it's only a single line. It also would help if you used standard naming conventions: classes start with an upper-case letter, methods and variables with a lower-case letter.

Is this the same problem: http://www.javaprogrammingforums.com...-fix-code.html

Threads merged.

NOTE: With an if statement, if the if condition is true, the else statement will NOT be executed.

kevin-I tied to fix it up

Norm- what kind of statement would i have to use to get it to print the token then print a line if it is divisible by a certain number? oh and yes that is the same problem I meant to put it in a different post but for sum reason they are in they same post.

Did you understand my NOTE? I made it because of a problem in the code you are asking about.

The {}s in the TokenStore2 class need to be fixed. Many of them are not in the proper column to show the nesting of the logic.

since the if statement is true then it won't go on to execute anything after it

Sort of true. It will not execute the else. But it will execute what comes after the else.
Look at your code. What is in the else statement? Is that related to your problem?

--- Update ---

How many blanks lines are printed by the program after the line it outputs?

Glad you found it.