Java primitive data type vs. reference data type Java language has 2 types of variables : primitive data type and reference data type.  Please research them from the online  and describe each along with their differences.

Operator overloading is     extremely common in PL since + works differently for ints and floats and it is also common for programming languages to allow the developer to overload operators     very uncommon in programming languages but some languages allow the programmer to overload all operators     very uncommon in programming languages     extremely common in PL since + works differently for ints and floats but it is uncommon for programming languages to allow the developer to overload operators

Fast please c++

Why do modern programming languages need to support both value and reference passing? When deciding between these two alternatives, why is it so difficult to choose only one? Your solution should address both the positives of having both and the drawbacks of having either alone.