Thread: 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

 
	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.

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.

Okay well I altered the code slightly

 
	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.

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]);
 
                           }
 
              }
 
}

Originally Posted by erdy_rezki

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.*; ?