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);

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);

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());
}

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);
}

Diff between C++ and java?

9 Answers   TCS,

---

Is java se open source?

0 Answers  

---

Can we sort set in java?

0 Answers  

---

Why we use methods in java?

0 Answers  

---

I want to persist data of objects for later use. What’s the best approach to do so?

0 Answers  

---

---

How do you use find and replace?

0 Answers  

---

what is method reference in java 8?

0 Answers  

---

is memory to the abstract class allocated ..or objects not instantiated

7 Answers   Synechron, TCS,

---

What mechanism does java use for memory management?

0 Answers  

---

System.out.println("somestring"); It will create any object or not

5 Answers   CSC,

---

What modifiers are used with a top level class?

3 Answers  

---

Can we initialize the final blank variable?

0 Answers  

---