Comparing two Strings in SharedPreference

Question

i set a shared preference variable:

SharedPreferences SPrefs;
SPrefs.edit().putString("SomeStringVariable", "sometext").commit();

and then i retrieve it:

String test1 = SPrefs.getString("SomeStringVariable", "Empty");

then compare it:

if(test1 == "sometext")
Toast.makeText(Main_Activity.this, test1, Toast.LENGTH_LONG).show();

Toast not works , it means test1 != "sometext" but if i remove "if" statement:

Toast.makeText(Main_Activity.this, test1, Toast.LENGTH_LONG).show();

Toast Works and "sometext" appears in emulator!

why this Occur?

Raghunandan · Accepted Answer · 2013-12-13T08:51:51.987

2

You should use

 if(test1.equals("sometext"))

use .equals or .equalsIgnoreCase to compare strings because == checks fro reference equality.

Reference :

edited Dec 13 '13 at 08:51

answered Dec 13 '13 at 08:42

Raghunandan

score 0 · Answer 2 · edited Dec 13 '13 at 10:03

0

Try using

if(test1.equals("sometext")){
  //Toast goes here
}

edited Dec 13 '13 at 10:03

Alberto Zaccagni

answered Dec 13 '13 at 08:44

Deepak Senapati

score 0 · Answer 3 · answered Dec 13 '13 at 08:45

0

You are comparing string so you should use .equals not ==

So as Raghunandan said you should use

if(test1.equals("sometext")) instead of 
if(test1 == "sometext")  replace this line with above and you are done.

answered Dec 13 '13 at 08:45

InnocentKiller

3 Answers3