import java.io.*;
import java.util.*;

public class test_6 {
  static char s[] = {'a','b','c','d','e','f'};
  static int a[] = { 1,2,3,4};
  static String ss = "horserace";
  public static void main(String [] args){
    String str = new String(s,2,3);
    System.out.println(str);
    System.out.println(String.valueOf(a));
    System.out.println(ss.substring(5));
    System.out.println(ss.substring(5,8));
    Integer ii = new Integer(1234);
    System.out.println(ii.toString());
    System.out.println(ii.intValue());
    System.out.println(Integer.toString(123));
    System.out.println(Integer.toHexString(123));
    System.out.println(Integer.toOctalString(123));
    System.out.println(Integer.parseInt("-123",10));
    System.out.println(Integer.parseInt("123",16));

    Vector v = new Vector();
    int i;
    for( i = 0; i < 30; i++)
      v.addElement(new Integer(i+100));
    v.removeElementAt(10);
    v.removeElementAt(20);

    for(Enumeration e = v.elements(); e.hasMoreElements(); )
      System.out.println(e.nextElement());
  }
}