Standalone return expression explanation

Question

I was online looking at some android coding examples and i came across a method that had a return expression by itself,and i was wondering if someone could explain what that means.

Here is the code sample:

if(tempText.getText().length() ==0){

    Toast.makeText(this, "Please enter a valid number", Toast.LENGTH_LONG).show();

     return;
 }

Answer 1

This is the If condition which checks for the length of the text which is "0" or not. If its "0" then it will show the Toast message and will return from or exit from the if loop an no further execution will processed.