Question

method in java

2. removeAt(pos): remove element at position pos. If position exceeds the length of the list throw an exception Example List: 467259 removeAt(2) List: 46259 removeAt(0) List: 625 9 removeAt(-1) IllegalArgumentException List: 6259 removeAt(7) IndexOutOfBoundsException List: 6259

Answer 1

import java.util.*;

public class Main

{

LinkedList<String> linkedlist = new LinkedList<String>();

public static void main(String[] args) {

int choice;

int position;

Scanner scan = new Scanner(System.in);

Main object = new Main();

String inputElement = "";

while(true){

System.out.println("\nEnter your choice ");

System.out.println(" 1. To add element to list ");

System.out.println(" 2. Remove an element from list ");

System.out.println(" 3. Exit ");

choice = scan.nextInt();

switch(choice){

case 1:

System.out.println("\nEnter the input element ");

inputElement = scan.next();

object.addElements(inputElement);

break;

case 2:

System.out.println("\nEnter the position of element to remove");

position = scan.nextInt();

object.removeAt(position);

break;

default :

System.out.println("Exiting");

System.exit(0);

}

}

}

public void addElements(String value){

// Add elements to LinkedList

linkedlist.add(value);

  

// list before delete at position

System.out.println("LinkedList Elements : ");

for(String str: linkedlist){

System.out.print(str);

System.out.print("->");

}System.out.println();

}

public void removeAt(int position){

if(position<0){

System.out.println("IllegalArgumentException");

}else if(position>linkedlist.size()){

System.out.println("ArrayIndexOutOfBoundsException");

}else {

// Removing the element in the given postion

Object e1 = linkedlist.remove(position);

System.out.println("\nElement "+ e1+ " removed from the list\n");

  

// LinkedList elements after remove

System.out.println("After removal:");

for(String str2: linkedlist){

System.out.print(str2);

System.out.print("->");

}System.out.println();

}

}

}

Enter your choice 1. To add element to list 2. Remove an element from list 3. Exit 2 Enter the position of element to remove ArravIndexOutOfBounds Exception Enter your choice 1. To add element to list 2. Remove an element from list 3. Exit 2 Enter the position of element to remove element 4 removed from the 1ist