How can i convert from String token fron edit text to integer in android

how can I get the data from edit text (the input type of the edit text is integer), I tried this code but it shows RunTime Error:

CaseAge=(EditText) findViewById(R.id.editText2);

String age =CaseAge.getText().toString();

case1.setAge(Integer.parseInt((age));

actually the problem with this line:

case1.setAge(Integer.parseInt((age));

thank you so much,