Example 1 1 public class TwoDimensionArrayTracing 2 { 3 public static void main(String[]args) 4 { 5 int row, col, n; 6 char [][] B; 7 8 n = 5; 9 B = new char[n][n]; 10 11 for (row = 0; row <= 4; row++) 12 { 13 for(col = 0; col <= B[row].length - 1; col++) 14 { 15 if(row == col || row + col == B[row].length - 1) 16 B[row][col] = 'X'; 17 else 18 B[row][col] = ' '; 19 } 20 } 21 22 for (row = 0; row <= B.length - 1; row++) 23 { 24 for(col = 0; col <= B[row].length - 1; col++) 25 { 26 System.out.print(B[row][col]); 27 } 28 System.out.println(); 29 } 30 } 31 }

Example 2 public class TwoDArray4
{
public static void main(String[ ] args) { int row, col, n; int [][] B; n = 5; B = new int[n][n]; for (row = 4; row >= 0; row--) { for (col = 4; col >= row ; col--) { if ((col == 4) || (row == col)) B[row][col] = 1; else B[row][col] = B[row+1][col+1] + B[row][col+1]; } } for (row = 0; row <= 4; row++) { for (col = 0; col <= 4; col++) System.out.print(B[row][col]); System.out.println(); }

}
}

Example 3
1 // 2 // 3 // 4 public class TwoArray 5 { 6 public static void main(String[ ] args) 7 { 8 int row, col, n; 9 int [][] B;
10
11 n = 5;
12
13 B = new int[n][n];
14
15 for (row = 0; row <= 4; row++)
16 {
17 B[row] = new int[row+1];
18 for (col = 0; col < row+1; col++)
19 {
20 B[row][col] = row*col;
21 }
22 }
23
24 for (row = 0; row <= 4; row++)
25 {
26 for (col = 0; col <= row; col++)
27 System.out.print(B[row][col]+"\t");
28 System.out.println();
29 }
30
31 } // end main()
32 } // end class TwoDArray

Example 4
1 /** 3 * @author Guillermo Zarate 4 * @author Cesar Caballero 5 * ASSIGNMENT 3 - Problem 1 * CS 207, Programming II * Computer Science - Summer, 2011 6 * The program prints out an smiley face using x and o 7 */ 8 public class array2d 9 {
10 public static void main(String[ ] args)
11 {
12 String x, o;
13 String [][] D;
14
15 o = "o";
16 x = "x";
17 D = new String[6][6];
18
19 for (int i = 0; i < D.length; i++) //Loads the array with o's to all indexes
20 {
21 for (int j = 0; j < D[i].length; j++)
22 {
23 D[i][j] = o;
24 }
25 }
26
27 for ( int i = 0; i < D.length; i++) //Assigns x to specific locations
28 {
29 for (int j = 0; j < D [i].length; j++ )
30 {
31 if ( i == 1 && j == 1)
32 D [i][j] = x;
33
34 if ( i == 1 && j == 4)
35 D [i][j] = x;
36
37 if ( i == 3 && j == 0)
38 D [i][j] = x;
39
40 if ( i == 3 && j == 5)
41 D [i][j] = x;
42
43 if ( i == 4 && j == 1)
44 D [i][j] = x;
45
46 if ( i == 4 && j == 2)
47 D [i][j] = x;
48
49 if ( i == 4 && j == 3)
50 D [i][j] = x;
51
52 if ( i == 4 && j == 4)
53 D [i][j] = x;
54
55 }
56 }
57
58 for ( int i = 0; i < D.length; i++) // Displays the 2D array in a grid form
59 {
60 for (int j = 0; j < D[i].length; j++)
61 {
62 System.out.print(D[i][j] + " ");
63 }
64 System.out.println();
65 }
66
68 }
69
70 }