Question

In Android ,i have a TextView ,inside the textview ,it contains some text example(22 likes,some times 1 like or empty text).Here i want to get only numbers not characters.so using how to use the String.replaceAll() to get the numbers exactly without empty text.
Here is a sample code …

textview.setText("2 Likes");
String com=textview.replaceAll("","");

Answer 1

use String.split to split string in Array as :

textview.setText("2 Likes");
String strtxt=textview.getText();

String[] arrliks = strtxt.split(" ");  
String num_of_likes=arrliks[0]; //<<< get 2 here

and you can also use regex expressions to split string

EDIT :

you call also use String.replaceAll as :

   String com=textview.getText();
   String liks = "likes";
   String str_new   ="";
  if (com.toLowerCase().indexOf(liks) != -1) {
     str_new=com.replaceAll(" Likes","");
   }else{
     str_new=com.replaceAll(" like","");
   }