Input file to Array

Hi everyone

I'm currently working on a program that will read in a file, break it up into sentences, check for duplicates (and print them to an outfile) and pull out specific sentences. I was trying to have the sentences saved as a String and then inputting each String into an Array (using ".", "!", etc. as cut off points so the program knows when the sentence is finished). For the duplicates, I was planning on counting the frequency of each sentence and print out the ones that occur more thna once. I was doing it this way as I also have to count the frequency of each word and pring the 100 words that occur more often, so I want to reuse as much code as possible.

This is what I have so far

Code java:

---

 
	import java.io.*;
	import java.util.*;
 
	public class four {
	public static String[] Array = new String[5000];
	public static int[] Frequency = new int[500000];
 
	public static void main(String[] args) throws Exception {
	BufferedReader br = new BufferedReader(new FileReader("X:\\Desktop\\book.txt"));
	StringBuilder sb = new StringBuilder();
 
	BufferedWriter bw = new BufferedWriter(new FileWriter("X:\\Desktop\\new.txt"));
 
    String line = br.readLine();
    while (line != null) {
        sb.append(line + "\n");
        line = br.readLine();
    }
    br.close();
    String text = sb.toString();
    getSentences(text);
	int nbWords = 0;
	int Sentences = 0;
	}
 
		public static int getSentences(String word) {
		int i = 0;
		String abc = "";
		int result = 0;
		char[] chars = word.toCharArray();
 
		for(Character c : chars)
		{
			abc += c;
			if(c == '.' || c == '!' || c == '?' || c == ']' /*|| c == 'k'*/)
			{
				Array[i] = abc;
				abc="";
			}
			i++;
 
		if (Array[i].isFull()==true)
		{
			writeline(Array[i]);
		}
	for (int n=0; n<Array.length; n++)
	{
		for (int j=0; j<Array.length; j++)
		{
			if (Array[n]==Array[j])
			{
				Frequency[n]++;
			}
		}
	}
	for (int p=0; p<Array.length; p++)
	{
		if (Frequency [p] > 1)
			System.out.println(Array[p] = "=" + Frequency[p]);
	}
 
		System.out.println(Array[23] + Array [189] + Array[590] + Array[690] + Array [847]);
		return result;
	}
}
}

---

Any input anyone could give would be greatly appreciated! I usually use Perl so I'm out of my league with all this Java.

I am really not sure what your question is. Does that code compile? Your indentation and lack of standard naming conventions (methods and variables start with a lower case letter, classes with upper case) makes it pretty hard to read.

It compiles sometimes but doesn't print anything to screen, currently it's reporting problems with "writeline" and with the Reader and Writer, specifically declaring new FileReader and new FileWriter.

What do you mean that it compiles sometimes? And what are the problems it is reporting? Copy and paste any compiler errors or stack traces you get, including the lines referenced.

I really suggest you reformat your code, as that weird indentation cannot be helping you out any.

Okay well I altered the code slightly

Code java:

---

 
	import java.io.*;
	import java.util.*;
 
	public class four {
	public static String[] Array = new String[5000];
	public static int[] Frequency = new int[500000];
 
	public static void main(String[] args) throws Exception {
	BufferedReader br = new BufferedReader(new FileReader("X:\\Desktop\\book.txt"));
	StringBuilder sb = new StringBuilder();
	FileWriter fstream = new FileWriter("new.txt");
	BufferedWriter bw = new BufferedWriter(fstream);
	//PrintWriter out = new PrintWriter(new BufferedWriter(new FileWriter("X:\\Desktop\\new.txt")));
 
    String line = br.readLine();
    while (line != null) {
        sb.append(line + "\n");
        line = br.readLine();
    }
    br.close();
    String text = sb.toString();
    getSentences(text);
	int nbWords = 0;
	int Sentences = 0;
	}
 
		public static int getSentences(String word) {
		int i = 0;
		String abc = "";
		int result = 0;
		char[] chars = word.toCharArray();
 
		for(Character c : chars)
		{
			abc += c;
			if(c == '.' || c == '!' || c == '?' || c == ']' /*|| c == '".'*/)
			{
				Array[i] = abc;
				abc="";
			}
			i++;
 
		if (Array[i]!=null)
		{
			out.Write(Array[i]);
		}
	for (int n=0; n<Array.length; n++)
	{
		for (int j=0; j<Array.length; j++)
		{
			if (Array[n]==Array[j])
			{
				Frequency[n]++;
			}
		}
	}
	for (int p=0; p<Array.length; p++)
	{
		if (Frequency [p] > 1)
			System.out.println(Array[p] = "=" + Frequency[p]);
	}
 
		System.out.println(Array[23] + Array [189] + Array[590] + Array[690] + Array [847]);
		return result;
	}
}
}

---

I get this problem under "Build Output" -
--------------------Configuration: <Default>--------------------
C:\Users\yr411018\Desktop\four.java:46: cannot find symbol
symbol : variable out
location: class four
out.Write(Array[i]);
^
1 error

Process completed.

And under "General Output" I get -
--------------------Configuration: <Default>--------------------
java.lang.NoClassDefFoundError: four
Caused by: java.lang.ClassNotFoundException: four
at java.net.URLClassLoader$1.run(URLClassLoader.java: 202)
at java.security.AccessController.doPrivileged(Native Method)
at java.net.URLClassLoader.findClass(URLClassLoader.j ava:190)
at java.lang.ClassLoader.loadClass(ClassLoader.java:3 07)
at sun.misc.Launcher$AppClassLoader.loadClass(Launche r.java:301)
at java.lang.ClassLoader.loadClass(ClassLoader.java:2 48)
Could not find the main class: four. Program will exit.
Exception in thread "main"
Process completed.

And when do you declare and initialize out?

Code java:

---

import java.io.*;
 
import java.lang.*;
 
 
 
public class latarray{
 
       public static void main(String [] args)throws IOException
 
              {                         
 
              BufferedReader baca=new BufferedReader(new InputStreamReader(System.in));
 
                     int i;
 
                     int[] no=new int[5];
 
                     System.out.println("Input Data");
 
                     for (i=0; i<5; i++)
 
                           {
 
                           //System.out.println("Input Data");                   
 
                           no[i]=Integer.parseInt(baca.readLine());
 
                           }
 
                     for (i=0; i<5; i++)
 
                           {
 
                           System.out.println(no[i]);
 
                           }
 
              }
 
}

---

Quote:

---

Originally Posted by erdy_rezki

Code java:

---

import java.io.*;
 
import java.lang.*;
 
 
 
public class latarray{
 
       public static void main(String [] args)throws IOException
 
              {                         
 
              BufferedReader baca=new BufferedReader(new InputStreamReader(System.in));
 
                     int i;
 
                     int[] no=new int[5];
 
                     System.out.println("Input Data");
 
                     for (i=0; i<5; i++)
 
                           {
 
                           //System.out.println("Input Data");                   
 
                           no[i]=Integer.parseInt(baca.readLine());
 
                           }
 
                     for (i=0; i<5; i++)
 
                           {
 
                           System.out.println(no[i]);
 
                           }
 
              }
 
}

---

---

what the function of import java.lang.*; ?