Specific amount of character in each line?

[hacikho]

I write a file with different characters in a single line, how can I write lets say 8 character and go one line down. I do not want one single line, I want to have multiple lines, each one has 8 character on it.

outFile.print(pixel);

[Fubarable]

You could use perhaps a PrintWriter object that is initialized with your output file or a FileReader object, and then call println on the PrintWriter object just as you do for System.out (which also happens to be a PrintWriter object).

[hacikho]

Yes I am using PrintWriter, actually I read a file which has single int in each line total 64 lin4, and I create two dimentional array [8][8], and each int represent a specific character. and it is time to display this as an image. however when I try to write those character I wrote them in one line. But I want to write them 8 character per line so it will look like an image. I am not sure if I explain my problem clearly.

[Fubarable]

So if you know how to use PrintWriter, it should be easy to solve this. What have you tried?

[hacikho]

this is what I have tried;

import java.io.*;
import java.util.Scanner;
public class Program6
{
	static final int ROWS = 8;
    static final int COLS = 8;
	public static void main(String[] args) throws IOException
	{
		
		Scanner inFile;
		PrintWriter outFile;
		inFile = new Scanner(new File("infile.txt"));
		outFile = new PrintWriter(new FileWriter("outfile.txt"));
	    String pixel;

		
		//declare and instantiate an array
		int [][] picture = new int [ROWS] [COLS];
		for (int row = 0; row<ROWS; row++)
		{
			for(int col = 0; col<COLS; col++)
			{
				picture[row][col] = inFile.nextInt();
			}
			
		}
			
			
		for(int row = 0; row<ROWS; row ++)
		{
			for (int col = 0; col<COLS; col++)
			{
				if(picture[row][col]>=0 && picture[row][col]<=7)
				{
				    pixel = " ";
				}
				else if(picture[row][col]>=8 && picture[row][col]<=15)
				{
					pixel = ".";
				}
				else if(picture[row][col]>=16 && picture[row][col]<=23)
				{
					pixel =",";
				}
				else if(picture[row][col]>=24 && picture[row][col]<=31)
				{
					pixel = "-";
				}
				else if(picture[row][col]>=32 && picture[row][col]<=39)
				{
					pixel = "+";
				}
				else if(picture[row][col]>=40 && picture[row][col]<=47)
				{
					pixel = "o";
				}
				else if(picture[row][col]>=48 && picture[row][col]<=55)
				{
					pixel = "0";
				}
				else 
				{
					pixel = "X";
				}
				
[COLOR="Red"]				for (int counter= 0; counter<9; counter++)
				     outFile.print(pixel);	[/COLOR]			}	
							
		}        	
				inFile.close();
				outFile.close();
	}
	
}

[hacikho]

I couldn't figure out how to display those pixels 8 characters per line

[Fubarable]

get rid of the for loop here:

for (int counter= 0; counter<9; counter++)
				     outFile.print(pixel);

and instead use the nested for loops that you already have.

		for(int row = 0; row<ROWS; row ++)
		{
			for (int col = 0; col<COLS; col++)
			{
				if(picture[row][col]>=0 && picture[row][col]<=7)
				{
				    pixel = " ";
				}
				else if(picture[row][col]>=8 && picture[row][col]<=15)
				{
					pixel = ".";
				}
				else if(picture[row][col]>=16 && picture[row][col]<=23)
				{
					pixel =",";
				}
				else if(picture[row][col]>=24 && picture[row][col]<=31)
				{
					pixel = "-";
				}
				else if(picture[row][col]>=32 && picture[row][col]<=39)
				{
					pixel = "+";
				}
				else if(picture[row][col]>=40 && picture[row][col]<=47)
				{
					pixel = "o";
				}
				else if(picture[row][col]>=48 && picture[row][col]<=55)
				{
					pixel = "0";
				}
				else 
				{
					pixel = "X";
				}
				
				outFile.print(pixel); // prints a pixel for each column
			}
		    outFile.println();  // prints a new line for each row
									
		}