question: private void doPrint ( PrintStream writer , List < String > args ) { String rootPath = mAppContext . getApplicationInfo ( ) . dataDir + "/shared_prefs" ; String offsetPrefix = args . isEmpty ( ) ? "" : args . get ( 0 ) ; String keyPrefix = ( args . size ( ) > 1 ) ? args . get ( 1 ) : "" ; printRecursive ( writer , rootPath , "" , offsetPrefix , keyPrefix ) ; }
target:  Execute command to print all keys and values stored in the shared preferences which match the optional given prefix