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| 1 | +importjava.util.*; |
| 2 | + |
| 3 | +classArrayListMethodsextendsArrayList{ |
| 4 | + |
| 5 | +publicstaticvoidmain(String[]args) { |
| 6 | + |
| 7 | +ArrayListMethodsal =newArrayListMethods(); |
| 8 | + |
| 9 | +// 1) boolean add(E); |
| 10 | +al.add(10); |
| 11 | +al.add("Dhiraj"); |
| 12 | +al.add("Dhiraj"); |
| 13 | +al.add(20.5f); |
| 14 | +al.add(10); |
| 15 | + |
| 16 | +System.out.println(al); |
| 17 | + |
| 18 | +// 2) void add(int, E); |
| 19 | + |
| 20 | +al.add(3,"Core2Web"); |
| 21 | +System.out.println(al); |
| 22 | + |
| 23 | +// 3) public int size(); |
| 24 | + |
| 25 | +System.out.println(al.size()); |
| 26 | + |
| 27 | +// 4) public boolean isEmpty(); |
| 28 | +System.out.println(al.isEmpty()); |
| 29 | + |
| 30 | +// 5) boolean contains(Object); |
| 31 | +System.out.println(al.contains("Dhiraj")); |
| 32 | +System.out.println(al.contains(23)); |
| 33 | + |
| 34 | +// 6) int indexOf(Object); |
| 35 | +System.out.println(al.indexOf(10)); |
| 36 | + |
| 37 | +// 7) int lastIndexOf(Object); |
| 38 | +System.out.println(al.lastIndexOf(10)); |
| 39 | + |
| 40 | +// 8) E get(int); |
| 41 | +System.out.println(al.get(5)); |
| 42 | + |
| 43 | +// 9) E set(3,E); |
| 44 | +System.out.println(al.set(2,"Gadekar")); |
| 45 | +System.out.println(al); |
| 46 | + |
| 47 | +ArrayListal2 =newArrayList(); |
| 48 | +al2.add("salman"); |
| 49 | +al2.add("shahrukh"); |
| 50 | +al2.add("Amir"); |
| 51 | + |
| 52 | +// 10) boolean addAll(Collection); |
| 53 | +al.addAll(al2); |
| 54 | +System.out.println(al); |
| 55 | + |
| 56 | +// 11) boolean addAll(int, Collection); |
| 57 | +al.addAll(3,al2); |
| 58 | +System.out.println(al); |
| 59 | + |
| 60 | +// 12) void removeRange(int, int); |
| 61 | +al.removeRange(3,6); |
| 62 | +System.out.println(al); |
| 63 | + |
| 64 | +// 13) E remove(int); |
| 65 | +System.out.println(al.remove(6)); |
| 66 | +System.out.println(al); |
| 67 | + |
| 68 | +// 14) boolean remove(Object); |
| 69 | +System.out.println(al.remove("Amir")); |
| 70 | +System.out.println(al.remove("salman")); |
| 71 | +System.out.println(al); |
| 72 | + |
| 73 | +// 15) Object[] toArray(); |
| 74 | +Objectarr[] =al.toArray(); |
| 75 | + |
| 76 | +for(Objectdata :arr) { |
| 77 | + |
| 78 | +System.out.print(data +" "); |
| 79 | +} |
| 80 | +System.out.println(); |
| 81 | + |
| 82 | +// 16) boolean removeAll(Collection); |
| 83 | +System.out.println(al.removeAll(al2)); |
| 84 | +System.out.println(al); |
| 85 | + |
| 86 | +al2.add("Dhiraj"); |
| 87 | +al2.add("Gadekar"); |
| 88 | +al2.add(10); |
| 89 | +// 17) boolean retainAll(Collection); |
| 90 | +System.out.println(al.retainAll(al2)); |
| 91 | +System.out.println(al); |
| 92 | + |
| 93 | +// 18) int hashCode(); |
| 94 | +System.out.println(al.hashCode()); |
| 95 | + |
| 96 | +// 19) Object clone(); |
| 97 | +ArrayListal3 = (ArrayList)al.clone(); |
| 98 | +System.out.println(al3); |
| 99 | + |
| 100 | +// 20) boolean equals(Object); |
| 101 | +System.out.println(al); |
| 102 | +System.out.println(al3); |
| 103 | +System.out.println(al.equals(al3)); |
| 104 | + |
| 105 | +// 21) void clear(); |
| 106 | +al.clear(); |
| 107 | +System.out.println(al); |
| 108 | +} |
| 109 | +} |