Wanna do my HW?

If by any amazing chance, somebody looooves programming java and would like to do my assignment, please feel free . I have 4 tests tomorrow and dont have time to mess w/ this.




LAB # 17 - Using an array as a counter. Write a class, PercentDigit, that creates 2000 random integers between 1 and 1000 and stores these numbers directly onto numbers2000.txt (not the array). Then read the numbers from the text file and count the number of numbers that begin with a 1 (15,132,199,1), with a 2, with a 3 and so on through 9 onto a count array of size 10. Output the % of each number using DecimalFormat. You will have a separate driver program that creates a PercentDigit object and runs the program.



public static void main(String[]args)

{

PercentDigit p = new PercentDigit();

p.writeToFile();

p.fillArray();

System.out.println(p);

}

 

NO >

 

BUMP
I WANT SOME1 TO DO IT

 

you should ask Zer0... hes does java

 

i think heyas gonna help me

 

ewww, I hate how teachers make you do OOP when its just plain stupid to use it.

Code (Text):

1.  
2.  
3. import java.io.*;
4. import java.text.DecimalFormat;
5.  
6. public class PercentDigit {
7.     String[] array;
8.     DecimalFormat df = new DecimalFormat( "00.00%" );
9.    
10.     public void writeToFile() throws Throwable {
11.         PrintWriter out = new PrintWriter( new BufferedWriter( new FileWriter( "numbers2000.txt" ) ) );
12.        
13.         for( int i = 0; i < 2000; i++ )
14.             out.println( (int)( 1 + 1000*Math.random() ) );
15.        
16.         out.close();
17.     }
18.    
19.     public void fillArray() throws Throwable {
20.         BufferedReader in = new BufferedReader( new FileReader( "numbers2000.txt" ) );
21.         array = new String[2000];
22.        
23.         for( int i = 0; i < 2000; i++ )
24.             array[i] = in.readLine();
25.     }
26.    
27.     public String toString() {
28.         int[] count = new int[9];
29.        
30.         for( String s : array )
31.             count[ s.charAt( 0 )-'1' ]++;
32.        
33.         String s = "";
34.        
35.         for( int i = 0; i < 9; i++ )
36.             s += ( i+1 ) + ":\t" + df.format( count[i]/2000d ) + '\n';
37.        
38.         return s;
39.     }
40.    
41.     public static void main( String[] args ) throws Throwable {
42.         PercentDigit p = new PercentDigit();
43.         p.writeToFile();
44.         p.fillArray();
45.         System.out.println( p );
46.     }
47. }
48.  

 

zer0.. I think i *might* love you. not sure, but probably..

 

Aw, Zer0 did it already, just as I was about to. :maha:

 

Nice code Zer0.... it's nothing hard, but not one simple line of this code can be removed.
Optimization baby ! :lol:

 

lol, I tend to optimize and condense all of my code (while still retaining readability)
Just looking at it now, I can eliminate one line.

Without the stupid constraint to use functions, I could probably shorten the code by an extra 10 lines or so.