Working with generic List : Generics Basics « Generics « Java Tutorial

1. Java Tutorial
2. Generics
3. Generics Basics

import java.util.ArrayList;
import java.util.List;

public class MainClass {
  public static void main(String[] args) {
    List stringList1 = new ArrayList();
    stringList1.add("Java 5");
    stringList1.add("with generics");

    String s1 = (String) stringList1.get(0);
    System.out.println(s1.toUpperCase());


    List<String> stringList2 = new ArrayList<String>();
    stringList2.add("Java 5");
    stringList2.add("with generics");


    String s2 = stringList2.get(0);
    System.out.println(s2.toUpperCase());
  }
}

JAVA 5
JAVA 5