1. What output is produced by the following code fragment? String greeting"How do you do?" system.out.println (greeting.length)); System.out.println (greeting.charAt (2)) System.out.println (greeting.substring (6)) int position -greeting.indexof ("you") System.out.println ("The word \"you\ " starts at index" +position) system.out.println ("abc def") System.out.println ("abe\ def") String ml, m2, m3; ml-"Quest for the Holy Grail"; m2-ml.toLowerCase() system.out.println (m3.replace('h