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  1. Prepare
  2. Java
  3. Data Structures
  4. Java List
  5. Discussions

Java List

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479 Discussions

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  • alishamittal664
     + 1 comment

    Delete is not working

    import java.io.; import java.util.;

    public class Solution {

    public static void main(String[] args) {
    /* Enter your code here. Read input from STDIN. Print output to STDOUT. Your class should be named Solution. */
    Scanner scan=new Scanner(System.in);
    int n=scan.nextInt();
    List<Integer> list= new ArrayList<>(n);
    for(int i=0;i<n;i++){
        list.add(scan.nextInt());
    }
    int q=scan.nextInt();
    for(int j=0;j<q;j++){
        String str=scan.nextLine();
        if(str.equalsIgnoreCase("Delete")){
            int m=scan.nextInt();
            list.remove(m);
        }  
        if(str.equalsIgnoreCase("Insert")){
            int x=scan.nextInt();
            int y=scan.nextInt();
            list.add(x, y);
        }   
    }
   list.forEach(i->{System.out.print(i+" ");});
}

    }

  • shekabdulla1998
     + 0 comments

    import java.io.; import java.util.;

    public class Solution {

    public static void main(String[] args) {
    Scanner scan = new Scanner(System.in);
    int l = scan.nextInt();   

    List<Integer> list = new ArrayList<>(l);
    for(int i = 0; i<l; i++){
        list.add(scan.nextInt());
    }

    int q = scan.nextInt();

    for(int i= 0; i<q; i++){
        String b = scan.next();
        if("Insert".equalsIgnoreCase(b)){
            int x = scan.nextInt();
            int y = scan.nextInt();  
            list.add(x, y);
        }
        if("Delete".equalsIgnoreCase(b)){
            int x = scan.nextInt();
            list.remove(x);
        }
    }

    list.forEach(i->{System.out.print(i+" ");});
    scan.close();
}

    }

  • n4m774r_d
     + 0 comments
    import java.io.*;
import java.util.*;
import java.util.stream.Collectors;

public class Solution {

    public static void main(String[] args) {
        Scanner sc = new Scanner(System.in);
        sc.nextLine();
        List<Integer> L = Arrays.stream(sc.nextLine().split(" "))
        .map(Integer::parseInt).collect(Collectors.toList());
        int Q = sc.nextInt();sc.nextLine();
        for (int i = 0; i < Q; i++) {
            sc.nextLine();
            List<Integer> xy = Arrays.stream(sc.nextLine().split(" "))
            .map(Integer::parseInt).collect(Collectors.toList());
            if (xy.size() > 1){L.add(xy.get(0),xy.get(1));}
            else {L.remove((int) xy.get(0));}
        }
        System.out.println(
            L.stream().map(String::valueOf).collect(Collectors.joining(" ")));
    }
}

  • gouravp386
     + 0 comments

    import java.io.; import java.util.;

    public class Solution {

    public static void main(String[] args) {
    Scanner sc=new Scanner(System.in);
    int n=sc.nextInt();
    // System.out.println(n);
    ArrayList<Integer> list=new ArrayList<>();
    for(int i=0;i<n;i++){

        list.add(sc.nextInt());
    }
    int q=sc.nextInt();
    for(int i=0;i<q;i++){
        String queryTpe=sc.next();
        if(queryTpe.equals("Insert")){
             int index=sc.nextInt();
        int value=sc.nextInt();
        list.add(index,value);
        }
        else if(queryTpe.equals("Delete")){
            int index=sc.nextInt();
            list.remove(index);
        }
}
list.stream().forEach(i->System.out.print(i+" "));

    sc.close();

    }}

  • kamrul1728
     + 0 comments

    import java.util.*;

    public class Solution {

    public static void main(String[] args) {
    Scanner sc = new Scanner(System.in);
    int N = sc.nextInt();
    List<Integer> list = new ArrayList<>();
    for(int i=0;i<N;i++){
        list.add(sc.nextInt());
    }
    int Q = sc.nextInt();
    for(int i=0;i<Q;i++){
        String s = sc.next();
        if(s.equalsIgnoreCase("Insert")){
            int index = sc.nextInt();
            int value = sc.nextInt();
            list.add(index,value);
        }else if(s.equalsIgnoreCase("Delete")){
            int indexToDelete= sc.nextInt();
            list.remove(indexToDelete);
        }
    }
    Iterator<Integer> iterator = list.iterator();
    while (iterator.hasNext()) {
        System.out.print(iterator.next() + " ");
    }
}

    }