18. What is the output of the following program segment? ArrayList people = new ArrayList0; people.add("Kathy Coleman"); people.add("Tom Terrific"); System.out.println(people); (A) Kathy Coleman Tom Terrific (B) Tom Terrific Kathy Coleman (C) [Kathy Coleman, Tom Terrific] 19. (D) Error What is the output of the following program segment? ArrayList people = new ArrayList(); people.add("Kathy Coleman"); people.add(new Integer(1000)); System.out.println(people); (A) Kathy Coleman 1000 (B) 1000 Kathy Coleman (C) [Kathy Coleman, 1000] (D) Error 20. What is the output of the following program segment? ArrayList people = new ArrayList0; people.add("Kathy Coleman"); people.add(new Integer(1000)); System.out.println(people); (A) Kathy Coleman 1000 (B) 1000 Kathy Coleman (C) [Kathy Coleman, 1000] (D) Error 21. Consider the following program segment. ArrayList names = new ArrayList0; names.add("Isolde"); names.add("John"); names.add("Greg"); names.add("Maria"); Which of the following statements display all the elements in the names array? (A) System.out.println(names); (B) for (int index=0; index list = new ArrayList0; Which of the following statements stores "Kathy" in the list array: (A) list.add("Kathy"); (B) for (String item: list) item="Kathy"; (C) list[10] = "Kathy": 23. (D) All of the above Consider the following program segment. ArrayList names1 = new ArrayList0; ArrayList names 2 = new ArrayList0; names1.add("Isolde"); names1.add("John"); names1.add("Greg"); names1.add("Maria"); names1.add("Heidi"); for (String name: names1) names2.add(name); Which of the following statements describes the correct execution of the program segment? (A) The segment cannot execute due to a compile error. (B) The elements of names are copied into names2 in reverse order. (C) The elements of names are copied into names2 in the same order. (D) The elements of names are copied into names in the same order. 24. Consider the following program segment. ArrayList names1 = new ArrayList0; ArrayList names2 = new ArrayList0; names1.add("Isolde"); names1.add("John"); names1.add("Greg"); names1.add("Maria"); names1.add("Heidi"); for (String name: names2) names1.add(name); System.out.println(names1); What is the output as a result of executing the program segment? (A) (B) (C) (D) [Isolde, John, Greg, Maria, Heidi) [Isolde, John, Greg, Maria, Heidi, Isolde, John, Greg, Maria, Heidi] U The segment cannot execute due to a compile error. 25. Consider the following program segment. ArrayList names = new ArrayList0; names.add("Isolde"); names.add("John"); names.add("Greg"); names.add("Maria"); names.add("Heidi"); for (String name: names) names.add(name); System.out.println(names) ; What is the output as a result of executing the program segment? (A) (B) (C) (D) [Isolde, John, Greg, Maria, Heidi] [Isolde, John, Greg, Maria, Heidi, Isolde, John, Greg, Maria, Heidi] Compile error message Program crashes during execution with a runtime exception errors