I was working on this problem using arrays and array lists, and then I want to sort the array list to that the numbers the user enters are in ascending over. When I try to run this, I get two error codes, 1: the period on the list.add(num1); is not recognized, and then the other error code is that the Arrays.sort(list); is not recognized, I honestly have no clue what to do, I searched the web all over and could not find anything, this is the sole reason I made this account xD. Please help!!!
import java.util.Scanner;
import java.util.*;
import java.util.Arrays;
public class randomArrayList{
public static void main(String[] args){
int n = 5;
ArrayList<Integer> list = new ArrayList<Integer>(n);
Scanner input = new Scanner(System.in);
System.out.println("Please enter 5 numbers: ");
int num1 = input.nextInt();
list.add(num1);
int num2 = input.nextInt();
list.add(num2);
int num3 = input.nextInt();
list.add(num3);
int num4 = input.nextInt();
list.add(num5);
int num5 = input.nextInt();
list.add(num5);
Arrays.sort(list);
System.out.println(list);
}
}
Scanner#nextIntwon't read the dangling new line left in the input bufferlist.add(num5);before you have declared the variable. I think you want to addnum4Arrays.sort(list);as the name implies is for sorting Arrays.Collections.sort(list)instead.