ArrayList

import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;
import java.util.ArrayList;

public class Ex01 {

public static void main(String[] args) throws IOException {

BufferedReader userInput = new BufferedReader
(new InputStreamReader(System.in));

ArrayList myArr = new ArrayList();
myArr.add("Italian Riviera");
myArr.add("Jersey Shore");
myArr.add("Puerto Rico");
myArr.add("Los Cabos Corridor");
myArr.add("Lubmin");
myArr.add("Coney Island");
myArr.add("Karlovy Vary");
myArr.add("Bourbon-l'Archambault");
myArr.add("Walt Disney World Resort");
myArr.add("Barbados");

System.out.println("Stupid Vacation Resort Adviser");
System.out.println("Enter your name:");
String name = userInput.readLine();
Integer nameLength = name.length();
if (nameLength == 0)
{
System.out.println("empty name entered");
return;
}

Integer vacationIndex = nameLength % myArr.size();

System.out.println("\nYour name is "+name+", its length is " +
nameLength + " characters,\n" +
"that's why we suggest you to go to "
+ myArr.get(vacationIndex));
}
}


http://www.anyexample.com/programming/java/java_arraylist_example.xml


Things I learned about:

ArrayList can dynamically increase or decrease in size.
Use only in primitive data type.