Answer / dsr

import java.util.Collections;
import java.util.LinkedList;


public class LikedListDemo {
public static void main(String[] args) {
LinkedList list = new LinkedList();
list.add("Raju");
list.add("Gopal");
list.add("Senthil");
list.add("nagesh");
System.out.println("list size....."+list.size());
System.out.println("list ....."+list);
Collections.reverse(list);
System.out.println("revese list ....."+list);
}
}

Answer / kaustubh

I'll give the algo here.You may write it in a programming
language of your choice.

Iterative Algo:

node *Reverse(node *head)
{
node *p,*q,*r;
p=head;q=r=NULL;
while(p!=NULL)
{
q=p;
p=p->next;
q->next=r;
r=q;
}
head=q;
return head;
}

Recursive algo:

From main call: Reverse(node *head,NULL)

reverse(node *p,node *q)
{
if(p->next!=NULL)
reverse(p->next,p)
else
{
p->next=q;
return
}
}

Explain access modifiers in java.

0 Answers  

---

What is role of void keyword in declaring functions?

0 Answers   Adobe,

---

Differentiate between == and equals().

0 Answers  

---

How can constructor chaining be done by using the super keyword?

0 Answers  

---

Can we declare an interface as final?

0 Answers  

---

public class Garbage { int a=0; public void add() { int c=10+20; System.out.println(c); System.out.println(a); } public static void main(String args[]) { Garbage obj=new Garbage(); System.gc(); System.out.println("Garbage Collected"); obj.add(); } } Above is a code in java used for garbage collection. object obj has been created for the class Garbage and system.gc method is called. Then using that object add method is called.System.gc method if called the obj should be garbage collected?

6 Answers  

---

How many types of packages are there in Java?

5 Answers  

---

What is string variable?

0 Answers  

---

explain about casting of objects?

5 Answers  

---

Define immutable object?

0 Answers  

---

What is considered an anti pattern?

0 Answers  

---

What are the performance implications of interfaces over abstract classes?

1 Answers  

---