MainClass.java Source code

Introduction

Here is the source code for MainClass.java

Source

/*
List contains 5 elements
List contains Integer(2): true
Integer(2) is at index 2
Get element at index 2: 99
Exception in thread "main" java.lang.IndexOutOfBoundsException: toIndex = 15
  at java.util.SubList.<init>(AbstractList.java:705)
  at java.util.RandomAccessSubList.<init>(AbstractList.java:861)
  at java.util.AbstractList.subList(AbstractList.java:570)
  at MainClass.main(MainClass.java:23)
    
*/
import java.util.ArrayList;

public class MainClass {
    public static void main(String[] args) {
        ArrayList myList = new ArrayList(5);
        for (int i = 0; i < 5; i++) {
            myList.add(new Integer(i));
        }
        System.out.println("List contains " + myList.size() + " elements");

        Integer int2 = new Integer(2);
        System.out.println("List contains Integer(2): " + myList.contains(int2));
        System.out.println("Integer(2) is at index " + myList.indexOf(int2));

        myList.set(2, new Integer(99));
        System.out.println("Get element at index 2: " + myList.get(2));

        myList.ensureCapacity(15);
        for (int i = 10; i < 15; i++) {
            myList.add(new Integer(i));
        }

        myList.subList(10, 15).clear();
        myList.trimToSize();

        System.out.println(myList);
    }
}