Class Tag

Object

Tag

public class Tag
extends Object

A class the converts strings into HTML tags

Constructor Summary

Constructors

Constructor and Description
Tag()

Method Summary

Modifier and Type	Method and Description
private static String	entity(String str, String tag) An HTML tag name can change a lot, but since the format is shared, we will focus on the principles of abstraction and DRY (Don’t Repeat Yourself), to write a helper method.
static String	h1(String str) Returns header 1 formatted html tags.
static String	h2(String str) Returns header 2 formatted html tags.
static String	h3(String str) Returns header 3 formatted html tags.
static String	htmlClosing() Simple closing tags for an html document
static String	htmlOpening() Simple opening tags for any html document.
static void	main(String[] args) You must write tests for this program, and we will check that the following tests have been implemented - at a minimum.
static String	tableClose() Simple closing tag of a table.
static String	tableOpen() Simple opening tag of a table.
static String	td(String str) Builds an html formatted table column element <td>.
static String	th(String str) Builds an html formatted table header element <th>.
static String	tr(String str) Builds an html formatted String for table row.

Methods inherited from class Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

Tag

public Tag()

Method Detail

entity

private static String entity(String str,
                             String tag)

An HTML tag name can change a lot, but since the format is shared, we will focus on the principles of abstraction and DRY (Don’t Repeat Yourself), to write a helper method. The shared format for all html tags is.

     <TAGNAME>text</TAGNAME>
 

Use String.format to return a String that matches the format above!

Here are some examples of entity in use

     entity("Ada", "b"); // returns <b>Ada</b>
     entity("Stem", "H1"); // returns <H1>Stem</H1>
     entity("invalid", "madeUPname"); // returns <madeUPname>invalid</madeUPname>
 

Parameters:

str - The text value inside of the tag

tag - the tag name

Returns:

the html formatted text

h1

public static String h1(String str)

Returns header 1 formatted html tags. For example, <h1>Hello</h1>

Parameters:

str - the text to apply the heading to

Returns:

the html formatted string

h2

public static String h2(String str)

Returns header 2 formatted html tags.

Parameters:

str - the text to apply the heading to

Returns:

the html formatted string

h3

public static String h3(String str)

Returns header 3 formatted html tags.

Parameters:

str - the text to apply the heading to

Returns:

the html formatted string

tr

public static String tr(String str)

Builds an html formatted String for table row.

It does not take into account the row is valid, just simply add the <tr> element around the text. So the following is valid

    tr("myString"); // returns <tr>myString</tr>
    tr(td("col1") + td("col2") + td("col")); // returns <tr><td>col1</td><td>col2</td><td>col3</td></tr>
 

Parameters:

str - the text that goes between the tag

Returns:

an html formatted table row

See Also:

td(String), th(String)

td

public static String td(String str)

Builds an html formatted table column element <td>.

Parameters:

str - the text that goes between the tag

Returns:

an html formatted table column

See Also:

tr(String), th(String)

th

public static String th(String str)

Builds an html formatted table header element <th>.

Parameters:

str - the text that goes between the tag

Returns:

an html formatted table column

See Also:

tr(String), td(String)

tableOpen

public static String tableOpen()

Simple opening tag of a table.

Returns:

the String <table>

tableClose

public static String tableClose()

Simple closing tag of a table.

Returns:

the String </table>

htmlOpening

public static String htmlOpening()

Simple opening tags for any html document. Usually much more would go here, but for simplicity of the assignment, we are leaving the head information blank.

Returns:

the string <html><head></head><body>

htmlClosing

public static String htmlClosing()

Simple closing tags for an html document

Returns:

the string </body></html>

main

public static void main(String[] args)

You must write tests for this program, and we will check that the following tests have been implemented - at a minimum. Test the table tags, as those are not included below! You will thank yourself later.

 TEST: entity should create new tags - <b>STEM  DEMO</b>
 TEST: entity should create new tags - <custom>STEM  DEMO</custom>
 TEST: H1 should add <h1>  - <h1>STEM  DEMO</h1>
 TEST: H2 should add <h2>  - <h2>STEM  DEMO</h2>
 TEST: H3 should add <h3>  - <h3>STEM  DEMO</h3>
 TEST: htmlOpening - <html><head></head><body>
 TEST: htmlClosing - </body></html>
 

Parameters:

args - not needed, but included for completeness