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Is String a Primitive datatype or Non-Primitive? (Since String is an Object)

rgb192
rgb192 asked
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I know String is a Primitive data type, but it can also be an Object.
If it's an Object, how can it be Primitive?


String s1="hello";
String s2=new string ("hello");

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IT Business Systems Analyst / Software Developer
Top Expert 2015
Commented:
I know String is a Primitive data type

No, String is an Object and always an Object. Why do think otherwise? Is it because of the first line of code above?

If so, that is just the Java Language giving you some special syntax for creating a String Object that is already initialised to a certain value. But it is still an Object.

Same thing as...

Integer i = 3;

i is still an Integer Object, but Java has just done this behind the scenes..

Integer i = new Integer(3);
it_saigeDeveloper
Distinguished Expert 2019
Commented:
No, String is not a primitive data type.  Java has 8 primitive data types; namely - byte, short, int, long, float, double, boolean and char.

Character strings are afforded special support via the java.lang.String class.

http://docs.oracle.com/javase/tutorial/java/nutsandbolts/datatypes.html

-saige-

Author

Commented:

i is still an Integer Object, but Java has just done this behind the scenes..
Integer i = new Integer(3);


Is integer an object?
it_saigeDeveloper
Distinguished Expert 2019
Commented:
While int is a primitive, Integer wraps the value of the primitive type int in an object. - Source

All primitives have wrappers.  The wrapper's are used to extend the primitive by adding Conversion, Comparison and Serialization methods (to name a few).

-saige-

Author

Commented:
could you give an example of a wrapper
mccarlIT Business Systems Analyst / Software Developer
Top Expert 2015

Commented:
could you give an example of a wrapper
Wow, an example was in that last post from it_saige... "While int is a primitive, Integer wraps the value of the primitive type int in an object"

The others are...  Long, Short, Double, Float, Character, Boolean and Byte

Author

Commented:
thanks for int string wrapper