memory required for each data type in Java

primitives.java

//  https://blog.udemy.com/java-data-types/?utm_source=adwords&utm_medium=udemyads&utm_campaign=DSA_Catchall_la.EN_cc.INDIA&utm_content=deal4584&utm_term=_._ag_82569850245_._ad_437477497173_._kw__._de_c_._dm__._pl__._ti_dsa-449490803887_._li_9061910_._pd__._&matchtype=b&gclid=CjwKCAjw0_T4BRBlEiwAwoEiAd5tg5iZ8c_k9pQxw5pX5HJoQKHjCc21ylREUKzHurajr3l7v2u5LhoCvKsQAvD_BwE
    public static void main(String[] args) {
        byte d = 127;   //  2^7 = -128 -> 2^7-1 = 127 - 8 bits = 1 byte
        short sh = 32767;  //  16 bits = 2 bytes
        int in = 2147483647;   //  32 bits = 4 bytes
        long lo = 9223372036854775807L; //  64 bits = 8 bytes
        float fl = 23.44f;  //  32 bits = 4 bytes
        double db = 342.4; //  64 bits = 8 bytes
        char ch = 'a';  //  16 bits - 2 byte
        boolean bool = false;   //  1 bit
    }