/**
 * Some examples of expressions
 * 
 * @author Bhaskaran Raman
 * @version 06 Jan 2005
 */
public class Expr {

  public static void main(String[] args) {
    System.out.print("2 < 3 is ");
    System.out.println(2 < 3);

    String s1 = "abc";
    String s2 = "abc";
    System.out.print("s1 == s2 is ");
    System.out.println(s1 == s2);

    String s3 = null;
    System.out.print("(2 == 3) && s3.equals(s1) is ");
    System.out.println((2 == 3) && s3.equals(s1));

    int x = 256;
    System.out.println("x is " + x);
    System.out.println("x << 3 is " + (x << 3));
    System.out.println("x >> 1 is " + (x >> 1));
    System.out.println("-x >> 1 is " + (-x >> 1));
    System.out.println("-x >>> 1 is " + (-x >>> 1));

    x /= 2;
    System.out.println("x after x /= 2 is " + x);
    x++;
    System.out.println("x after x++ is " + x);

    System.out.print("(2 < 3) ? 6 : 7 is ");
    System.out.print((2 < 3) ? 6 : 7);

  } // End main()

  static boolean odd(int n) {
    if((n%2) == 1) {
      return true;
    } else {
      return false;
    }
  } // End odd()

  public String reverse(String s1) {
    int len = s1.length();
    String rev = "";
    int i;
    for(i = len-1; i >= 0; i--) {
      char c1 = s1.charAt(i);
      rev += String.valueOf(c1);
    }
    return rev;
  } // End reverse()

  public int gcd(int x, int y) {
    if(x < y) {
      int temp = x;
      x = y;
      y = temp;
    }
    while((x%y) != 0) {
      int rem = x%y;
      x = y;
      y = rem;
    }
    return y;
  }

} // End class Expr