there are some duplicate values in ArrayList, how U'll get that array with

there are some duplicate values in ArrayList, how U'll get
that array with out duplicate?

Question Posted / sai

4 Answers
7627 Views
CMC, I also Faced
E-Mail Answers

Answers were Sorted based on User's Feedback

there are some duplicate values in ArrayList, how U'll get that array with out duplicate?..

Answer / sai

ArrayList list = new ArrayList();
list.add("a");
list.add("b");
list.add("a");
list.add("c");
list.add("b");
HashSet set = new HashSet(list);
list.clear();
list.addAll(set);
System.out.println("ArrayList : ");
for (Object data : list) {
System.out.println(data);

Is This Answer Correct ?

13 Yes

2 No

there are some duplicate values in ArrayList, how U'll get that array with out duplicate?..

Answer / phani raju

ArrayList list = new ArrayList();
list.add("a");
list.add("b");
list.add("a");
list.add("c");
list.add("b");
LinkedHashSet lset = new LinkedHashSet
(list);
list.clear();
list.addAll(lset);
System.out.println("ArrayList : ");
for (Object data : list) {
System.out.println(data);

Is This Answer Correct ?

5 Yes

0 No

there are some duplicate values in ArrayList, how U'll get that array with out duplicate?..

Answer / shilpa

List<Integer> arlList=new ArrayList<Integer>();
arlList.add(20);
arlList.add(2);
arlList.add(1);
arlList.add(6);
arlList.add(6);
Set<Integer> tr=new TreeSet<Integer>(arlList);
Iterator<Integer> iterator=tr.iterator();
while(iterator.hasNext()){
System.out.println(iterator.next());
}

Is This Answer Correct ?

4 Yes

0 No

there are some duplicate values in ArrayList, how U'll get that array with out duplicate?..

Answer / banti

public void removeDuplicateDataFromArrayList(){
ArrayList<String> al = new ArrayList<>();
al.add("a");
al.add("b");
al.add("c");
al.add("c");
al.add("a");

HashSet<String> hs = new HashSet<>();
hs.addAll(al);
al.clear();
al.addAll(hs);
System.out.println("The ArrayList values are :"+ al);

// Or

System.out.println("ArrayList : ");
for (Object data : al) {
System.out.println(data);
}

Is This Answer Correct ?

0 Yes

0 No

Post New Answer