Are Strings reference type?

Question

I reverse my information in java and see this note

arrays and strings are also reference type

what I know about that is
the reference type change when call a method that change it and the other does not

for example

edited
String x="aba";
change(x);
//will not affect
String []y={"aba"};
change(y]);
//will affect

is that true ??

Answer 1

‎‏‪ABADA S‬‏‎ Solution : 💗 🙆‍♂️🤗

https://code.sololearn.com/cqY2hJM2pamZ/?ref=app

Answer 2

https://code.sololearn.com/cw81bEZ2qe1q/?ref=app

does the previous code show the defference between reference or not ?to make sure that I really understood reference type truly

we can see there the array element was affected by the method but the string is not

Answer 3

Strings are immutable in Java, so you can't modify the object once created. methods like substring etc. return a new String instead.

The code is a bit misleading, if you just make an assignment inside the method then both will not be affected, because you are just reassigning the local variable that is passed by value. But when you modify a property of the object or index of the array you are dereferencing the object reference that was passed into the method and this is what allows reference types to be affected outside the scope of a method. As I said, Strings are immutable so you can't change its internal state once you create it

Answer 4

String and arrays are implemented in objects in java.
which means the variables of them holds the reference type.
all object arguments are passed by reference not by value.
String x = "abc";
String[] y = {"abc"};
change (x);// will affect.
change (y (0));// will affect.