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

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483 Discussions

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  • hungmanh2607uit1
     + 0 comments

    my code: import java.io.; import java.util.;

    public class Solution {

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

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

    int m = scan.nextInt();
    scan.nextLine(); 

    for (int i = 0; i < m; i++) {
        String s = scan.nextLine();
        if (s.equals("Insert")) {
            int a = scan.nextInt();
            int b = scan.nextInt();
            l.add(a, b);
            if (scan.hasNextLine()) {
                scan.nextLine(); 
            }
        } else if (s.equals("Delete")) {
            int x = scan.nextInt();
            l.remove(x);
            if (scan.hasNextLine()) {
                scan.nextLine(); 
            }
        }
    }

    for (Integer element : l) {
        System.out.print(element + " ");
    }
}

    }

  • kavib9345
     + 0 comments
    public class Solution {

    public static void main(String[] args) {
        Scanner in=new Scanner(System.in);
        int n=in.nextInt();
        List<Integer> list=new ArrayList<>(n); 
        for(int i=0;i<n;i++){
            list.add(in.nextInt());
        }  
        int q=in.nextInt();
        for(int j=0;j<q;j++){
            String str=in.next();
            if(str.equalsIgnoreCase("Insert")){
                int x=in.nextInt();
                int y=in.nextInt();
                list.add(x,y);
            }
            if(str.equalsIgnoreCase("delete")){
                int z=in.nextInt();
                list.remove(z);
            }
        }
        for(int num:list){
            System.out.print(num+" ");
        }
    }
}

  • prasadabhishek42
     + 0 comments

    the sample test case is passed but all other test cases got failed

    Scanner sc = new Scanner(System.in); int n = sc.nextInt();

        List<Integer> l = new ArrayList<>(n);
    for(int i =0; i<n; i++){
        l.add(sc.nextInt());
    }
    int q = sc.nextInt();
    sc.nextLine();
    for(int i =0; i<q; i++ ){
        String str = sc.nextLine().trim();
         if(str.equalsIgnoreCase("Insert")){
            int index = sc.nextInt();
            int value = sc.nextInt();
            sc.nextLine();
        l.add(index,value);
    } 
    if(str.equalsIgnoreCase("Delete")){
            int removeindex = sc.nextInt(); 
             l.remove(removeindex);
       }
    }
       l.forEach(l1 -> System.out.print(l1 + " "));

  • seftimarket
     + 0 comments

    This is my solution:

    List elements = new ArrayList<>(); Scanner scan = new Scanner(System.in);

    int size = scan.nextInt();

    for(int i=0;i

  • 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+" ");});
}

    }