if(letters >=5 && digits >=5)
{
System.out.println("Great job! String is acceptable");
System.exit(0);
}
//after use, letter and digit variables reset to 0
letters = 0;
digits = 0;
} //end a program within an if statement, which is nested with a while loop
//with the use of System.exit(0)
//0 indicates successful termination
//any non-zero value indicates an unsuccessful termination
continue; // skips the current itteration
break; // breaks the itteration