There is open source project called TinyMCE it supporting many options .I used it in my Spring MVC project it's working well.
This code for modifying the text editor :
tinymce.init({
/* replace textarea having class .tinymce with tinymce editor */
selector: "#mytextarea",
/* theme of the editor */
theme: "modern",
skin: "lightgray",
/* width and height of the editor */
width: "auto",
height: 200,
/* display statusbar */
statubar: true,
/* hide menubar */
menubar: false,
/* plugin */
plugins: [
"advlist autolink link image lists charmap preview hr anchor pagebreak",
"searchreplace wordcount visualblocks visualchars code fullscreen insertdatetime media nonbreaking",
"save table contextmenu directionality emoticons template paste textcolor codesample spellchecker"
],
/* toolbar */
toolbar: "insertfile undo redo | styleselect | bold italic | link image | codesample | preview media fullpage | backcolor emoticons spellchecker",
/*set spell_checker language*/
spellchecker_language: 'English=en,Danish=da,Dutch=nl,Finnish=fi,French=fr_FR,' + 'German=de,Italian=it,Polish=pl,Portuguese=pt_BR,Spanish=es,Swedish=sv',
code_dialog_width: 700,
/* style */
style_formats: [
{title: "Headers", items: [
{title: "Header 1", format: "h1"},
{title: "Header 2", format: "h2"},
{title: "Header 3", format: "h3"},
{title: "Header 4", format: "h4"},
{title: "Header 5", format: "h5"},
{title: "Header 6", format: "h6"}
]},
{title: "Inline", items: [
{title: "Bold", icon: "bold", format: "bold"},
{title: "Italic", icon: "italic", format: "italic"},
{title: "Underline", icon: "underline", format: "underline"},
{title: "Strikethrough", icon: "strikethrough", format: "strikethrough"},
{title: "Superscript", icon: "superscript", format: "superscript"},
{title: "Subscript", icon: "subscript", format: "subscript"},
{title: "Code", icon: "code", format: "code"}
]},
{title: "Blocks", items: [
{title: "Paragraph", format: "p"},
{title: "Blockquote", format: "blockquote"},
{title: "Div", format: "div"},
{title: "Pre", format: "pre"}
]},
{title: "Alignment", items: [
{title: "Left", icon: "alignleft", format: "alignleft"},
{title: "Center", icon: "aligncenter", format: "aligncenter"},
{title: "Right", icon: "alignright", format: "alignright"},
{title: "Justify", icon: "alignjustify", format: "alignjustify"}
]}
]
});
In your view page use cdn link like :
<script type="text/javascript" src='//cloud.tinymce.com/stable/tinymce.min.js?apiKey=l03xfookfa0t5658pstpggnkx50dqe'></script>
<script type="text/javascript" src="${pageContext.request.contextPath}/resources/js/init-tinymce.js"></script>
<textarea id="mytextarea" name="ANSWER">Write your answer here!</textarea>
For more options and informations visit TinyMCE
I hope this help you.