1. Suppose "speed" and "visibility" are variables of type "int". Write an if 
statement that sets the variable "speed" equal to 25 and displays the word 
"Caution", provided the value of "speed" is greater than 25 and the value of 
"visibility" is under 20. There is no "else" part.

2. What output is produced by the following code?

int time = 2, tide =  3;
if(time + tide > 6) 
  System.out.println("Time and tide wait for no one.");
else if(time + tide > 5) 
  System.out.println("Time and tide wait for someone.");
else if(time + tide > 4) 
  System.out.println("Time and tide wait for everyone.");
else
  System.out.println("Time and tide wait for me.");

3. What output is produced by the following code?

char letter = 'B';
switch(letter)
{
  case 'A':
  case 'a':
    System.out.println("Some kind of A.");
  case 'B':
  case 'b':
    System.out.println("Some kind of B.");
    break;
  default:
    System.out.println("Something else.");
    break;
}