Question

How to reverse an ArrayList in Java

Answer 1

import java.util.ArrayList;
import java.util.Collections;

public class MyClass {
    public static void main(String args[]) {
        ArrayList<String> al = new ArrayList<String>() {{
            add("java");
            add("c#");
            add("php");
            add("c");
        }};
        
        Collections.reverse(al);
        
        System.out.println(al);
    }
}



/*
run:

[c, php, c#, java]

*/

 

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