import java.util.ArrayList;
import java.util.Collections;
public class MyClass {
public static void main(String[] args) {
ArrayList<String> al = new ArrayList<String>();
al.add("java");
al.add("c++");
al.add("python");
al.add("c#");
al.add("c");
System.out.println(al);
Collections.shuffle(al);
System.out.println(al);
}
}
/*
run:
[java, c++, python, c#, c]
[c#, c, java, python, c++]
*/