please do all.

13. [after $3.20] Assuming that tab stops are 4 columns apart, what output does the following statement generate? System.out.println("'"files: "'n|tE:llcodellHello.java"); 14. [after $3.21] What's wrong with this statement? String programmingPioneer = "Admiral Grace Hopper".. 15. [after \$3.22] Assume that you have a string variable named lastName. Provide a code fragment that prints lastName's first character. 16. [after $3.22] What does this code fragment print? String s = "bean".: s+= "bag": System.out.println(s.equals(beanbag")); System.out.println (( s.length ()5)+"+ s.charAt (0)+" 's in " +s)