null v/s empty String(" ")

if(myString.equals("")){

}

if(myString.equals(null)){

}


wat is the difference between " "(empty string) and null string

"" contains no characters, but is still a reference to an empty string. null contains no reference data, so basically it doesn't exist at all. Does that make sense or do you want a better explanation?

PS: Have a look at this: http://hanuska.blogspot.com/2006/08/empty-string.html

Think of an empty String like an empty egg crate, a String with characters, the same container with eggs, and a null reference -- no egg crate at all.

We speak loosely about a null string: but there is, literally, no such thing.

myString.equals("") is true when the value of the variable myString is a pointer to a string with no characters in it.

myString.equals(null) is true when the variable myString has a special value that refers to no string whatsoever.

Quote:

---

Originally Posted by Fubarable

Think of an empty String like an empty egg crate, a String with characters, the same container with eggs, and a null reference -- no egg crate at all.

---

Thanks. Now I can never eat eggs non-existentially again.