René's URL Explorer Experiment

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        "name": "HelloKoding - Practical Coding Guides, Tutorials and Examples Series",
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    "author": {
        "@type": "Person",
        "name": "Van N.",
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    "headline": "Java LinkedHashMap Tutorial with Examples",
    "url": "http://hellokoding.com/java-linkedhashmap-tutorial-with-examples/",
    "datePublished": "2019-10-20T07:51:04.000Z",
    "dateModified": "2020-03-28T15:02:24.000Z",
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    "description": "Java LinkedHashMap is a hash table (key-value pairs, dictionary) and doubly linked list data structure implementation of the Map interface, a part of the Java Collections framework LinkedHashMap has the following features Provides insertion-ordered iteration No duplicate keys. Permits one null key and multiple null values Offers constant time performance"
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