Force stopped

Question

what is the reason for force stopped.
I wrote an if statement for button but when there is nothing to do it will crash.

Answer 1

could you please post the code so others can halp debug it.

Answer 2

public void cheak (View v){
String gn =edcheak.getText().toString();
int gnn = Integer.parseInt(gn);
String nc =String.valueOf(gnn);
edcheak.setText("");

if(gnn == zotopia){
tvcheak.setText("" + "«" + zotopia + "»" + "");
}else if (gnn > zotopia){
tvcheak.setText("");
}else if (gnn < zotopia){
tvcheak.setText("");
}else if(zotopia == 0){
Toast.makeText(this , "." ,Toast.LENGTH_SHORT).show();
}
}

Answer 3

if the EditText is empty when you click the button it will crash