Strings in Java : equals vs == [duplicate]

Answer 1

When comparing s == s1 you are comparing two different MyString objects. Think of your situation like this

s and s1 are different objects, but their attribute point to the same instance of toto.

They are different objects because of the way you create them:

MyString s = new MyString("toto");
MyString s1 = new MyString("toto");

So s == s1 will return false. For it to return true, they had to be the same object. You could achieve it like this:

MyString s = new MyString("toto");
MyString s1 = s;

That would be the result