Yes. It is always good to test programs with values that are right at the limit.
A car rental agency wants a program to implement its rules for who can rent a car. The rules are:
The program looks something like the cookie program:
// Rental Car Checker
//
import java.io.*;
class RenterChecker
{
  public static void main (String[] args) throws IOException
  { 
    BufferedReader stdin = 
        new BufferedReader ( new InputStreamReader( System.in ) );
 
    String inData;
    int    age, credit; 
    // get the age of the renter
    System.out.println("How old are you?");
    inData   = stdin.readLine();
    age      = Integer.parseInt( inData ); 
    // get the credit line
    System.out.println("How much credit do you have?");
    inData   = stdin.readLine();
    credit   = Integer.parseInt( inData ); 
    // check that both qualifications are met
    if ( _______________________ )
      System.out.println("Enough to rent this car!" );
    else
      System.out.println("Have you considered a bicycle?" );
  }
}