Java collections - List

 Java collections  

A ) List

 Write a program by using arraylist and Add the number 5,2,2,1,3 and remove 2 number index (1) and arranging the ascending order

import java.util.ArrayList;

import java.util.Collections;

public class simplelist {

    public static void main(String[ ] args) {

        ArrayList<Integer> number = new ArrayList<Integer>();

        number.add(5);

        number.add(2);

        number.add(2);

        number.add(1);

        number.add(3);

        System.out.println(number);

        number.remove(2);

        Collections.sort(number);

        System.out.println(number);

    }

}

OUTPUT: 

[5, 2, 2, 1, 3]

[1, 2, 3, 5]