{"id":27,"date":"2023-09-05T08:22:55","date_gmt":"2023-09-05T07:22:55","guid":{"rendered":"https:\/\/onlinecodinghelp.com\/?p=27"},"modified":"2023-09-06T07:45:35","modified_gmt":"2023-09-06T06:45:35","slug":"what-is-data-types-in-java","status":"publish","type":"post","link":"https:\/\/onlinecodinghelp.com\/index.php\/2023\/09\/05\/what-is-data-types-in-java\/","title":{"rendered":"What are the data types in Java?"},"content":{"rendered":"\n

Data types specify the different sizes and values that can be stored in the variable.
There are two types of data types in Java: <\/p>\n\n\n\n

    \n
  1. Primitive data types<\/li>\n\n\n\n
  2. Non-primitive data types<\/li>\n<\/ol>\n\n\n\n

    1) Primitive data types<\/strong> : There are eight primitive data types in Java<\/p>\n\n\n\n

    Data Type<\/th>Size<\/th>Range<\/th>Default Values<\/th><\/tr><\/thead>
    boolean<\/td>1 bit<\/td>true or flase<\/td>flase<\/td><\/tr>
    char<\/td>2 bytes<\/td>one character\/letter or 0 to 65,536 (unsigned) , ASCII values<\/td>\\u0000<\/td><\/tr>
    byte<\/td>1 byte<\/td>128 to 127<\/td>0<\/td><\/tr>
    short<\/td>2 bytes<\/td>32,768 to 32,767<\/td>0<\/td><\/tr>
    int<\/td>4 bytes<\/td>2,147,483,648 to 2,147,483,647<\/td>0<\/td><\/tr>
    long<\/td>8 bytes<\/td>9,223,372,036,854,775,808 to 9,223,372,036,854,775,807<\/td>0<\/td><\/tr>
    float<\/td>4 bytes<\/td>6 to 7 significant decimal digits<\/td>0.0<\/td><\/tr>
    double<\/td>8 bytes<\/td>15 significant decimal digits<\/td>0.0<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n

    2) Non-Primitive Data Types<\/strong> : Non-primitive data types are created by the programmer, and are not defined by Java language.<\/p>\n\n\n\n

    Examples : Strings, Arrays, Classes, Interface etc.
    String myStrVar = “Hello, It’s String Variable”;<\/p>\n\n\n\n

    Difference between primitive data types and non primitive data types<\/strong><\/h2>\n\n\n\n
    Primitive Data Type<\/th>Non-primitive Data type<\/th><\/tr><\/thead>
    This are predefined in Java<\/td>This are created by the programmer and is not defined by Java<\/td><\/tr>
    A primitive type always has a value<\/td>Non-primitive types can be null.<\/td><\/tr>
    Primitive type starts with a lowercase letter.<\/td>Non-primitive types start with an uppercase letter.<\/td><\/tr><\/tbody><\/table><\/figure>\n","protected":false},"excerpt":{"rendered":"

    Data types specify the different sizes and values that can be stored in the variable.There…<\/p>\n","protected":false},"author":4,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[3],"tags":[],"_links":{"self":[{"href":"https:\/\/onlinecodinghelp.com\/index.php\/wp-json\/wp\/v2\/posts\/27"}],"collection":[{"href":"https:\/\/onlinecodinghelp.com\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/onlinecodinghelp.com\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/onlinecodinghelp.com\/index.php\/wp-json\/wp\/v2\/users\/4"}],"replies":[{"embeddable":true,"href":"https:\/\/onlinecodinghelp.com\/index.php\/wp-json\/wp\/v2\/comments?post=27"}],"version-history":[{"count":15,"href":"https:\/\/onlinecodinghelp.com\/index.php\/wp-json\/wp\/v2\/posts\/27\/revisions"}],"predecessor-version":[{"id":51,"href":"https:\/\/onlinecodinghelp.com\/index.php\/wp-json\/wp\/v2\/posts\/27\/revisions\/51"}],"wp:attachment":[{"href":"https:\/\/onlinecodinghelp.com\/index.php\/wp-json\/wp\/v2\/media?parent=27"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/onlinecodinghelp.com\/index.php\/wp-json\/wp\/v2\/categories?post=27"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/onlinecodinghelp.com\/index.php\/wp-json\/wp\/v2\/tags?post=27"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}