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kimikom Dec 11th, 2019 (edited) 108 Never
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  1. import java.util.Scanner;
  2. import java.util.Random;
  3.  
  4. public class project {
  5.     public static void main(String[] args) {
  6.         Scanner sc = new Scanner(System.in);
  7.         int rows = 0;
  8.         while (rows < 1 || rows > 9) {
  9.             System.out.println("rows? ");
  10.             rows = sc.nextInt();
  11.         }
  12.         int columns = 0;
  13.         while (columns < 1 || columns > 9) {
  14.             System.out.println(" columns?");
  15.             columns = sc.nextInt();
  16.             int length = 0;
  17.             System.out.println("side length?");
  18.             length = sc.nextInt();
  19.             System.out.print("  " + "|");
  20.             for (int j = 0; j < columns; j++) {
  21.                 System.out.print("   " + j);
  22.             }
  23.             System.out.println();
  24.             for (int j = 0; j <= columns; j++) {
  25.                 System.out.print("----");
  26.             }
  27.             System.out.println();
  28.             int[][] board = new int[rows][columns];
  29.             Random rand = new Random();
  30.             for (int i = 0; i < rows; i++) {
  31.                 System.out.print(i + "  |");
  32.                 for (int j = 0; j < columns; j++) {
  33.                     board[i][j] = (char) ('*' + Math.random() * ('*'));
  34.                     System.out.print("   " + board[i][j]);
  35.                 }
  36.                 System.out.println();
  37.  
  38.             }
  39.         }
  40.     }
  41. }
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