String toString() Method [closed]

Question

Closed. This question needs details or clarity. It is not currently accepting answers.

---

Want to improve this question? Add details and clarify the problem by editing this post.

Closed 8 years ago.

Improve this question

I would like to make a copy of a string without having a string variable reference the previous string. Would the toString() method be the solution?

In other words, does String.toString() return a copy of its characters rather than a reference to itself?

Answer 1

No, it returns the String object itself. You can do

String copy = new String(myString.toCharArray());

or

String copy = new String(myString); // may use same char[] instance

Please note String is immutable so usually you have no need to copy it.

Answer 2

No, toString will return the String itself. If you want a copy you should use

String newString = new String(oldString);

but the internal implementation of strings in JDK uses a string pool so they could refer to the same internal string.

In any case asking for a copy doesn't make sense, since they're immutable: unless you are modifying the copy while you create it, there is no point in doing it at all.

Answer 3

The toString method for class Object returns a string consisting of the name of the class of which the object is an instance.

toString(): This returns a String object representing the value of this Integer.

toString(int i): This returns a String object representing the specified integer.

System.out.println("str.toString: " + str.toString());

Answer 4

 String s1 = "123";
 String s2 = "123";

These two are the same string.