Why is this a small box in front of the string

java.lang.NumberFormatException: unable to parse '101010100' as integer

This is prompting error because '101 010 100' as shown in front of a small box

This string is share.getString (SHARE_APPCONFIG_FOURAREA, "") taken out, and why there is a small box<-! Main posts under Banner (D4) -><-! Posts under the main text (D5) ->
Reply:
SharedPreferences share = getSharedPreferences (SHARE_APPCONFIG_TAG, 0);
share.getString (SHARE_APPCONFIG_FOURAREA, "")
Reply:
Check the saved value is not a problem.
Reply:
Save when there is no problem