if statement comparing strings in java android

I'm
trying to write a method in az DBOpenHelper extends SQLOpenHelper class.
It
supposed to evaluate if there's an entry in the DB with the same name.

public boolean
            existsContact(Contact contact) {

 SQLiteDatabase db =
            this.getReadableDatabase();
 String selectQuery = "SELECT * FROM " +
            TABLE_CONTACTS;
 Cursor cursor = db.rawQuery(selectQuery,
            null);

 if (cursor.moveToFirst()) {
 do
            {

 String name = cursor.getString(1);
 String cname =
            contact.getName();
 if (name == cname) {


            cursor.close();
 db.close();
 return true;


            }

 } while (cursor.moveToNext());

            }

 db.close();

 return
            false;
}

Here's
the relevant part of Contact
class:

 public class Contact
            {

 String _name;
 public String getName(){

            return this._name;
 }

            }

Now
here's the strange thing:

Scenario A :
if (name == cname) where name = "foo"
and cname = "foo" equals false.
Eclipse debugger
show name's foo and cname's foo have different id's.
both variables filled as
seen before in code.

Scenario B:
if(name == cname) where variabales are loaded like
this:

String name =
            "foo";
String cname = "foo";
 statement equals true as it's supposed
            to.

Scenario C:
if("foo" == "foo") equals true...BUT...debugger goes out the
window. LogCat show debugger connected, but there's no activity in eclipse's Debug
perspective. Breakpoints have no effect. No Threads shown.

Answer

In java, when using
== on two objects, you're not actually comparing the strings
themselves. You'll need to use
.equals(String).

==
actually compares the two object's references, not their
values.

string1.equals(String
target) compares the two strings based off of the actual characters in the
strings.

See: href="http://www.leepoint.net/notes-java/data/expressions/22compareobjects.html">http://www.leepoint.net/notes-java/data/expressions/22compareobjects.html