Question

import java.util.Scanner;
import java.io.*;

public class P1 {
        static final int ROW = 1000;
        static final int COL = 667;

        public static void readImage(int[][][] startImage, String fileName) {
                Scanner inputF = new Scanner(fileName);

                int row = 0, col = 0;
                int line = 1;
                while (inputF.hasNext()) {
                        if (line <= 4) {
                                inputF.nextLine();
                                line++;
                        } else {
                                line += 3;
                                if (col < COL) {
                                        startImage[row][col][0] = inputF.nextInt();
                                        startImage[row][col][1] = inputF.nextInt();
                                        startImage[row][col][2] = inputF.nextInt();
                                        col++;
                                } else {
                                        row++;
                                        col = 0;
                                        startImage[row][col][0] = inputF.nextInt();
                                        startImage[row][col][1] = inputF.nextInt();
                                        startImage[row][col][2] = inputF.nextInt();
                                        col++;
                                }
                        }

                }
                inputF.close();
        }

        public static void printImage(int[][][] startImage) {
                for (int row = 0; row < ROW; row++) {
                        for (int col = 0; col < COL; col++) {
                                for (int color = 0; color < 3; color++) {
                                        System.out.println(startImage[row][col][color]);
                                }
                        }
                }
        USING THIS SAME CODE,CONVERT THE ARRAYS THAT ARE BIENG DISPLAYED INTO FILES USING FILEWRITER
      


  public static int[][][] getAverage(int[][][] p1, int[][][] p2) {
                int[][][] avgImage = new int[ROW][COL][3];
                
                for(int i=0; i<ROW; i++) {
                        for(int j=0; j<COL; j++) {
                                for(int k=0; k<3; k++) {
                                        avgImage[i][j][k] = p1[i][j][k] + p2[i][j][k];
                                }
                        }
                }
                
                return avgImage;
        }
        
        public static void main(String[] args) throws IOException {
                int[][][] startImage = new int[ROW][COL][3];
                readImage(startImage, "start.ppm");
                printImage(startImage);

                int[][][] finalImage = new int[ROW][COL][3];
                readImage(startImage, "final.ppm");
                printImage(startImage);

                int[][][] middlearray = getAverage(startImage, finalImage);
                printImage(middlearray);

                int[][][] fourtharray = getAverage(startImage, middlearray);
                printImage(fourtharray);

                int[][][] fiftharray = getAverage(finalImage, middlearray);
                printImage(fiftharray);
                
        }

}

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Answer 1

Modify the printImage method as below:

        public static void printImage(int[][][] startImage) throws FileNotFoundException {
                PrintWriter writer = new PrintWriter(new File("output.txt"));
                for (int row = 0; row < ROW; row++) {
                        for (int col = 0; col < COL; col++) {
                                for (int color = 0; color < 3; color++) {
                                        System.out.println(startImage[row][col][color]);
                                        writer.println(startImage[row][col][color]);
                                }
                        }
                }
                writer.close();
                
                System.out.println("Created output.txt in " + System.getProperty("user.dir"));
        }

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