grid.java

SudokuVer1.3 Project using the JAVA Code to play sudoku Release version 1.3

// Name: Tsang Kai Ming, Patrick (25)
// Couse Code 41300/1 Group V
// Subject: ICT-1414 Object-oriented Programming
// Sudoku Assignment 2 File (Java Programming)

import java.util.Arrays;
class Grid {
//------------------------------------------------------------------------------------------------
			public final static int AB = 3;
			private int[][] numbers=new int[ AB ][AB];
// TODO:
// Declare a 3x3 2-dimension integer array
// Initialize your array to all zero in your default constructor
public Grid() {
//------------------------------------------------------------------------------------------------
   			for (int i = 0; i < AB; i++) {
						for (int j = 0; j < AB; j++) {
	            				numbers[i][j] =0;
					}
			}
}
// Store the numbers into your integer array in this constructor
public Grid(int[][] numbers) {
			for (int x = 0; x<3;x++)
						for (int y = 0; y<3;y++)
								this.numbers[x][y] = numbers[x][y];
}

// Assign the number to the appropriate place in your array
public void put(int num, int x, int y) {
//------------------------------------------------------------------------------------------------
			if (num<0 || num>9 || x<0 || x>2 || y<0 || y>2){
						System.out.println("incorrect number, you should input 0-9");}
			else{
						this.numbers[x][y]=num;
			}
}

// Return the number from the appropriate place in the array
public int get(int x, int y) {
//------------------------------------------------------------------------------------------------
			return this.numbers[x][y];
	}
// Check if num is valid in your array
// If num appears more than once in the array, it returns false
// otherwise, returns true
/*** HINTS: Use a nested for loop to count the appearance of num ***/

public boolean checkInside(int num) {
//------------------------------------------------------------------------------------------------
			int temp = 0;
					for (int x = 0;x<3;x++)
							for (int y = 0;y<3;y++)
									if (get(x,y)==num){
										temp += 1;
									if (temp >= 2)
										return false;
									}

			return true;
}
// Return a String representing the Grid
	// e.g.
	//
	// 3 5 7
	// 2 4 6
	// 1 8 9
public String toString() {
//------------------------------------------------------------------------------------------------
			String str="";
					for(int i=0; i<3; i++) {
							for (int j=0; j<3; j++) {
									str+=get(i,j)+" ";
					// if it is a zero, print a space " " instead
					}
					str+="\n";
					}
					return str;
					}

}