1    package net.server.servlets; 
2     
3    /** 
4     * The HtmlTable class encapsulates the functionality 
5     * required to construct an HTML representation of a table. 
6     * 
7     * The number of rows and columns of the required table 
8     * are specified as arguments to the constructor, as is the 
9     * size of the border drawn around the table. 
10    * 
11    * The table can then be populated with data items using 
12    * the setItem method. 
13    * 
14    * To retrieve the resulting table, the getHtml method is 
15    * invoked. 
16    * 
17    * @author Robert Lysik 
18    * @version 1.00 
19    */ 
20   public class HtmlTable { 
21       // Data members of the HtmlTable class 
22       // which will be used to construct an 
23       // HTML representation of a table. 
24       private int rows; 
25       private int cols; 
26       private int border; 
27       private String tableItem[][]; 
28    
29       /** 
30        * This function sets the value of an element in the 
31        * table specified by the parameters r and c passed 
32        * in as arguments. 
33        * 
34        */ 
35       public HtmlTable(int r, 
36                        int c, 
37                        int b) { 
38           rows = r; 
39           cols = c; 
40           border = b; 
41           tableItem = new String[rows][cols]; 
42       } 
43    
44       /** 
45        * This function sets the value of an element in the 
46        * table specified by the parameters r and c passed 
47        * in as arguments. 
48    
49        */ 
50       public void setElement(int r, 
51                              int c, 
52                              String value) { 
53           tableItem[r][c] = value; 
54       } 
55    
56       /** 
57        * This function returns the value of the element in 
58        * the table as specified by the r and c parameters 
59        * passed in as arguments. 
60        * 
61        */ 
62       public String getElement(int r, 
63                                int c) { 
64           return tableItem[r][c]; 
65       } 
66    
67       /** 
68        * This function returns the HTML script to generate 
69        * the table as a string. 
70        */ 
71       public String getHtml() { 
72           String html = new String(); 
73    
74           // Start the table definition with the opening HTML tag 
75           html = "<table border = " + border + ">\r\n"; 
76    
77           // Loop through each row and column index for the table 
78           // Prefix each new row with the <tr> HTML tag, and 
79           // each element in the row using the <td> tag. The 
80           // value for each item is stored in the tableItem String 
81           // array. 
82           for (int rowIndex = 0; rowIndex < rows; rowIndex++) { 
83               html += "<tr>\r\n"; 
84               for (int colIndex = 0; colIndex < cols; colIndex++) { 
85                   html += "<td>" + 
86                           (tableItem[rowIndex][colIndex]) + 
87                           "\r\n"; 
88               } 
89           } 
90    
91           // Add the closing tag for the table. 
92           html += "</table>\r\n"; 
93    
94           return html; 
95       } 
96   } 
97