Write the programs for Linked List (Insertion and Deletion)
operations
Answer Posted / vikram_tp
import java.util.*;
class Node
{
int n;
Node nx;
Node()
{
nx=null;
}
}
class Linklist
{
Node f,l;
Linklist()
{
f=l=null;
}
void inserte(int x)
{
Node nr=new Node();
nr.nx=null;
nr.n=x;
if(f==null)
f=nr;
else
l.nx=nr;
l=nr;
}
void insertf(int x)
{
Node nr=new Node();
nr.nx=f;
nr.n=x;
f=nr;
}
void insertb(int x, int c)
{
Node nr=new Node();
nr.n=x;
Node p;
p=f;
while(p.n!=c)
p=p.nx;
nr.nx=p.nx;
p.nx=nr;
}
void delete(int x)
{
Node p,q;
p=q=f;
while(p!=null&&p.n!=x)
{
q=p;
p=p.nx;
}
if(p!=null)
{
if(p==f)
f=f.nx;
else
if(p==l)
{
q.nx=null;
l=q;
}
else
q.nx=p.nx;
}
else
System.out.println("element not present ");
}
void search(int x)
{
Node p;
p=f;
while(p!=null&&p.n!=x)
p=p.nx;
if(p==null)
System.out.println("element not found");
else
System.out.println("element found");
}
void display()
{
Node p;
p=f;
if(p==null)
{
System.out.println("Link list is empty ");
return;
}
while(p!=null)
{
System.out.println(p.n);
p=p.nx;
}
}
}
public class Link
{
public static void main(String args[])
{
int ch1,ch2,n;
Linklist L=new Linklist();
Scanner bv=new Scanner(System.in);
do
{
System.out.println(" menu\n1. insert a node\n2. Delete a node\n3. Display\n4. Search\n5. Exit");
System.out.print("enter ur choice : ");
ch1=bv.nextInt();
switch(ch1)
{
case 1:
System.out.print("enter the data : ");
n=bv.nextInt();
System.out.println(" menu\n1. insert at start\n2. insert at end\n3. insert in between");
System.out.print("enter ur choice : ");
ch2=bv.nextInt();
switch(ch2)
{
case 1: L.insertf(n);
break;
case 2: L.inserte(n);
break;
case 3:
System.out.print("enter the data after which you want to insert : ");
int c=bv.nextInt();
L.insertb(n,c);
break;
default:
System.out.println("wrong choice");
break;
}
break;
case 2:
System.out.print("enter the data : ");
n=bv.nextInt();
L.delete(n);
break;
case 3:
L.display();
break;
case 4:
System.out.print("enter the data : ");
n=bv.nextInt();
L.search(n);
break;
case 5 :break;
default :
System.out.println("wrong choice entered");
break;
}
}while(ch1!=5);
}
}
Is This Answer Correct ? | 10 Yes | 22 No |
Post New Answer View All Answers
What is weight balanced tree in data structure?
Can arraylist hold duplicates?
What is a tech stack?
What are the types of data structures?
How would you reverse characters of an array without using indexing in the array.
Define binary tree insertion.
What is nonlinear data?
What is the need of sorting?
How do I use quick sort?
How do you rotate an AVL tree?
What are the advantages and disadvantages of linked list?
What is time complexity of bubble sort?
How efficient is bubble sort?
Can you sort a hashmap?
Which sorting algorithm is used in collections sort?