public class TestOperators
{
  public static void main (String[] argv)
  {
    int i = 5;

    i = i + 1;
    i += 1;            // Shortcut: same as i = i+1;

    // Pre and post-use increment
    i = 10;
    System.out.println (++i);    // Prints 10
    i = 10;
    System.out.println (i++);    // Prints 11

    // Comparison operators: < > <= >= == !=
    int j = 10;
    if (i != j)
      System.out.println ("Help! i not equal to l!");

    // Casting
    byte b = 8;
    long l = 100;
    i = i + b;         // b is automatically converted to an int
    i = i + l;         // Illegal - explicit cast required
    i = i + (int) l;   // OK (explicit downward cast)
    b = b + 1;         // Illegal: `1' is an integer
    l = l + 1;         // OK, `1' is up-cast.
    b++;               // OK, within type.

    // Bitwise operators: & | ^ << >> >>> &= |= ^= <<= >>= >>>=
    int x1 = 8, x2 = 15;
    int x3 = x1 & x2;
    System.out.println (x3);  // What does this print?

    // Boolean type
    boolean tired = true;
    boolean had_enough = true;

    // Boolean operators: && || !
    if (tired && had_enough)
      System.out.println ("Go home");
  }

}