package com.logicbig.example.collections;
import java.util.ArrayList;
import java.util.Collections;
import java.util.Enumeration;
public class ListExample {
public static void main(String... args) {
Enumeration<?> e = System.getProperties()
.propertyNames();
ArrayList<?> list = Collections.list(e);
System.out.println(list.size());
}
}