How we can sort primitive types or Object array and list with a simple JAVA program ?

package com.java8s.sort;

import java.util.ArrayList;

import java.util.Arrays;

import java.util.Collections;

import java.util.List;

public class JavaObjectSortingExample {

    /**

     * This class shows how to sort primitive arrays,

     * Wrapper classes Object Arrays

     * @param args

     */

    public static void main(String[] args) {

        //sort primitives array like int array

        int[] ar = {50,100,40,30};

        Arrays.sort(ar);

        System.out.println(Arrays.toString(ar));

       

        //sorting String array

        String[] arr = {"A", "C", "B", "Z", "E"};

        Arrays.sort(arr);

        System.out.println(Arrays.toString(arr));

       

        //sorting list of objects of Wrapper classes

        List<String> l = new ArrayList<String>();

        l.add("A");

        l.add("C");

        l.add("B");

        l.add("Z");

        l.add("E");

        Collections.sort(l);

        for(String str: l) System.out.print(" "+str);

    }

}

Output

 [30,40,50,100]

 [A,B,C,E,Z]

  A B C E Z