Life

import chn.util.*;
import apcslib.*;
import java.util.*;

public class Life {
    public void printTable (int[][] pTable){
        int totalAlive = 0;
        System.out.print("  ");
        for (int i = 1; i <= 2; i++){
            for (int k = 1; k <= 9; k++){
                System.out.print(k);
            }
            System.out.print("0");
        }
        System.out.println();
        for (int row = 1; row < pTable.length - 1; row++){
            System.out.print(Format.right(row, 2));
            for (int col = 1; col < (pTable[row].length); col++){
                if(pTable[row][col] == 1){
                    System.out.print("*");
                    totalAlive += 1;
                }
                else System.out.print(" ");
            }
            System.out.println();
        }
        System.out.println("Number in Row 10 ---> " +checkRow(pTable, 10));
        System.out.println("Number in Column 10 ---> " + checkCol(pTable, 10));
        System.out.println("Number of living organisms ---> " + totalAlive);

    }
    public static int[][] zeroGeneration(FileInput inFile, int[][] currentTable){
        int number = inFile.readInt();
        int row, col;
        while(inFile.hasMoreTokens()){
            row = inFile.readInt();
            col = inFile.readInt();
            currentTable[row][col] = 1;
        }
        return currentTable;
    }
    public static int checkNeighbors(int[][] currentTable, int r, int c){
        int neighbors = 0;
        for (int row = -1; row <= 1; row++){
            for (int col = -1; col <= 1; col++){
                if (currentTable[r + row][c + col] == 1 && (row != 0 || col != 0))
                    neighbors++;
            }
        }
        return neighbors;
    }
    public static int[][] nextGeneration(int[][]currentTable){
        int[][] scratchTable = new int[22][22];
        for(int row = 1; row <= 20; row++){
            for (int col = 1; col <= 20; col++){
                if (currentTable[row][col] == 1){
                    if (checkNeighbors(currentTable, row, col) < 2 || checkNeighbors(currentTable, row, col) > 3){
                        scratchTable[row][col] = 0;
                    }
                    else scratchTable[row][col] = 1;
                }
                else if(checkNeighbors(currentTable, row, col) == 3){
                    scratchTable[row][col] = 1;
                }
            }
        }
        return scratchTable;
    }
    public static int checkRow(int[][] currentTable, int cell){
        int rowAlive = 0;
        for (int col = 0; col < currentTable[cell].length; col++){
            if (currentTable[cell][col] == 1){
                rowAlive += 1;
            }
        }
        return rowAlive;
    }
    public static int checkCol(int[][] currentTable, int cell){
        int colAlive = 0;
        for (int row = 0; row < currentTable.length; row++){
            if (currentTable[row][cell] == 1){
                colAlive += 1;
            }
        }
        return colAlive;
    }
    public static void main(String[] args) {
        FileInput inFile = new FileInput("life100.txt");
        Life test = new Life();
        int[][] firstTable = new int[22][22];
        firstTable = zeroGeneration(inFile, firstTable);
        int[][] nextTable = new int[22][22];
        nextTable = nextGeneration(firstTable);
        for(int i = 1; i < 5; i++){
            nextTable = nextGeneration(nextTable);
        }
        test.printTable(nextTable);
    }
}
`