Android toast example :
Android Toast is a small message shown when a particular action is done, as apart of result i.e., output of the work done.
Format for a toast in android
Short Toast
Toast.makeText(MainActivity.this, "", Toast.LENGTH_SHORT).show();
Long Toast
Toast.makeText(MainActivity.this, "", Toast.LENGTH_LONG).show();
So the error is that .show() will be missed sometime, then the actual problem is code will not show any error but will not display any toast.
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