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Asked: 2026-05-26T01:24:58+00:00

The following code: org.apache.commons.lang.StringEscapeUtils.unescapeHtml(Hello World); gives: Hello World But I’d like to know how to

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The following code:

org.apache.commons.lang.StringEscapeUtils.unescapeHtml("Hello World");

gives:

Hello World

But I’d like to know how to get back to the decoded string from “Hello World”. I have tried the escapeHtml method, but this only encodes special characters.

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  1. Editorial Team

    But I’d like to know how to get back to the decoded string from “Hello World”. I have tried the escapeHtml method, but this doesn’t do anything useful.

    Not true about “anything useful”; if your test string contained HTML special characters like <,>,&, the function would’ve turned it into &lt; &gt; and &amp; (and change other upper ISO8859-1 codes into entities).

    If you need to encode it back to Unicode entity format, just iterate through the String codepoints:

    for (int i = 0; i < str.length(); i++)
    System.out.print("&#" + str.codePointAt(i) + ";");
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