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2sbsbsb/HTMLTableBuilder.java

Created June 18, 2012 23:43
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Simple HTML Table Builder
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HTMLTableBuilder.java
/**
* Uses:
* HTMLTableBuilder htmlBuilder = new HTMLTableBuilder(null, true, 2, 3);
* htmlBuilder.addTableHeader("1H", "2H", "3H");
* htmlBuilder.addRowValues("1", "2", "3");
* htmlBuilder.addRowValues("4", "5", "6");
* htmlBuilder.addRowValues("9", "8", "7");
* String table = htmlBuilder.build();
* System.out.println(table.toString());
*/
public class HTMLTableBuilder {
private int columns;
private final StringBuilder table = new StringBuilder();
public static String HTML_START = "<html>";
public static String HTML_END = "</html>";
public static String TABLE_START_BORDER = "<table border=\"1\">";
public static String TABLE_START = "<table>";
public static String TABLE_END = "</table>";
public static String HEADER_START = "<th>";
public static String HEADER_END = "</th>";
public static String ROW_START = "<tr>";
public static String ROW_END = "</tr>";
public static String COLUMN_START = "<td>";
public static String COLUMN_END = "</td>";
/**
* @param header
* @param border
* @param rows
* @param columns
*/
public HTMLTableBuilder(String header, boolean border, int rows, int columns) {
this.columns = columns;
if (header != null) {
table.append("<b>");
table.append(header);
table.append("</b>");
}
table.append(HTML_START);
table.append(border ? TABLE_START_BORDER : TABLE_START);
table.append(TABLE_END);
table.append(HTML_END);
}
/**
* @param values
*/
public void addTableHeader(String... values) {
if (values.length != columns) {
System.out.println("Error column lenth");
} else {
int lastIndex = table.lastIndexOf(TABLE_END);
if (lastIndex > 0) {
StringBuilder sb = new StringBuilder();
sb.append(ROW_START);
for (String value : values) {
sb.append(HEADER_START);
sb.append(value);
sb.append(HEADER_END);
}
sb.append(ROW_END);
table.insert(lastIndex, sb.toString());
}
}
}
/**
* @param values
*/
public void addRowValues(String... values) {
if (values.length != columns) {
System.out.println("Error column lenth");
} else {
int lastIndex = table.lastIndexOf(ROW_END);
if (lastIndex > 0) {
int index = lastIndex + ROW_END.length();
StringBuilder sb = new StringBuilder();
sb.append(ROW_START);
for (String value : values) {
sb.append(COLUMN_START);
sb.append(value);
sb.append(COLUMN_END);
}
sb.append(ROW_END);
table.insert(index, sb.toString());
}
}
}
/**
* @return
*/
public String build() {
return table.toString();
}
/**
* @param args
*/
public static void main(String[] args) {
HTMLTableBuilder htmlBuilder = new HTMLTableBuilder(null, true, 2, 3);
htmlBuilder.addTableHeader("1H", "2H", "3H");
htmlBuilder.addRowValues("1", "2", "3");
htmlBuilder.addRowValues("4", "5", "6");
htmlBuilder.addRowValues("9", "8", "7");
String table = htmlBuilder.build();
System.out.println(table.toString());
}
}
@Kuanlin-Chen
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Your code really made my day !

@rfcms-iscteiul
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Thank you. Very helpful!

@2sbsbsb
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Author

2sbsbsb commented Jul 24, 2019

Glad that you guys find it helpful. @rfcms-iscteiul @Kuanlin-Chen

@nanfree
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nanfree commented Aug 19, 2019

thank you ！

@ameyaKetkar
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Your code made my day! Thanks a lot!

@2sbsbsb
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2sbsbsb commented Nov 1, 2019

@nanfree and @ameyaKetkar
Glad that you liked it.

@EhsanTang
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public class HTMLTableBuilder {
private int columns;
private final StringBuilder table = new StringBuilder();
public static String TABLE_START = "

";
public static String TABLE_END = "
";
public static String HEADER_START = "";
public static String HEADER_END = "";
public static String ROW_START = "";
public static String ROW_END = "";
public static String COLUMN_START = "";
public static String COLUMN_END = "";

/**
 * @param columns
 */
public HTMLTableBuilder(int columns) {
    this.columns = columns;
    table.append(TABLE_START);
    table.append(TABLE_END);
}

/**
 * @param values
 */
public void addTableHeader(Object... values) {
    int lastIndex = table.lastIndexOf(TABLE_END);
    if (lastIndex <= 0) {
        return;
    }
    StringBuilder sb = new StringBuilder();
    sb.append(ROW_START);
    if (values.length != columns) {
        for (int i = 0; i < columns; i++) {
            sb.append(HEADER_START);
            sb.append("values size error");
            sb.append(HEADER_END);
        }
    } else {
        for (Object value : values) {
            sb.append(HEADER_START);
            sb.append(value == null ? "" : value.toString());
            sb.append(HEADER_END);
        }
    }
    sb.append(ROW_END);
    table.insert(lastIndex, sb.toString());
}

/**
 * @param values
 */
public void addRowValues(Object... values) {
    int lastIndex = table.lastIndexOf(TABLE_END);
    if (lastIndex <= 0) {
        return;
    }
    StringBuilder sb = new StringBuilder();
    sb.append(ROW_START);

    if (values.length != columns) {
        for (int i = 0; i < columns; i++) {
            sb.append(COLUMN_START);
            sb.append("values size error");
            sb.append(COLUMN_END);
        }
    } else {
        for (Object value : values) {
            sb.append(COLUMN_START);
            sb.append(value == null ? "" : value.toString());
            sb.append(COLUMN_END);
        }
    }
    sb.append(ROW_END);
    table.insert(lastIndex, sb.toString());
}

/**
 * @return
 */
public String build() {
    return table.toString();
}

/**
 * @param args
 */
public static void main(String[] args) {
    HTMLTableBuilder htmlBuilder = new HTMLTableBuilder(3);
    htmlBuilder.addTableHeader("1H", "2H", "3H");
    htmlBuilder.addRowValues("1", "2", "3");
    htmlBuilder.addRowValues("4", "5", 6);
    htmlBuilder.addRowValues("9", "8", "7");
    String table = htmlBuilder.build();
    System.out.println(table.toString());
}

}

@nicholaswkc34
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How to add css code?

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